Supreme Court of California Justia
Docket No. S128248
John B. v. Super. Ct.



Filed 7/3/06



IN THE SUPREME COURT OF CALIFORNIA



JOHN B.,

Petitioner,

S128248

v.

Ct.App. 2/8 B169563

THE SUPERIOR COURT OF

LOS ANGELES COUNTY,

Los Angeles County

Respondent;

Super. Ct. No. BC271134

)
BRIDGET B., )
)
Real Party in Interest. )



This is a sad case. Bridget B., the plaintiff in the underlying action and

real party in interest herein, is infected with the human immunodeficiency virus

(HIV), the probable causative agent of acquired immune deficiency syndrome

(AIDS). So is her husband, petitioner herein and defendant in the underlying

action, John B.

Bridget alleges that John became infected with HIV first, as a result of

engaging in unprotected sex with multiple men before and during their marriage,

and that he then knowingly or negligently transmitted the virus to her. John, who

now has full-blown AIDS, alleges in his answer that Bridget infected him and

offers as proof a negative HIV test conducted in connection with his application

1




for life insurance on August 17, 2000, six weeks before Bridget discovered she

was infected with HIV.

This factual scenario raises a number of interesting questions: What duty

does an HIV-positive individual have to avoid transmitting the virus? What level

of awareness should be required before a court imposes a duty of care on an HIV-

positive individual to avoid transmission of the virus? What responsibility does

the victim have to protect himself or herself against possible infection with the

virus? And who infected whom with HIV here? However, this case comes to us

at an early stage, before any discovery has been conducted. The issue here is

simply the extent to which Bridget may inquire into John’s medical records and

sexual conduct in order to confirm or refute her allegations that John knowingly or

negligently infected her with HIV.

The proposed discovery treads on important statutory and constitutional

privacy rights. To decide what discovery should be permitted, we must balance

Bridget’s right to discover relevant evidence against John’s right to privacy. After

balancing these interests, the superior court overruled John’s objections and

authorized broad discovery into John’s medical records as well as his sexual

history over the past 10 years. The Court of Appeal granted John’s petition for

writ of mandate to the extent the discovery sought the identities of John’s previous

sexual partners and admissions concerning his “lifestyle,” but otherwise denied

relief.

We conclude that discovery should be further limited in light of John’s

negative HIV test on August 17, 2000, which restricts the window period of

possible infection to the six months preceding the negative test. However,

Bridget, on remand, may overcome this temporal limitation on discovery by

offering some basis to question the accuracy or reliability of John’s negative HIV

2



test. We therefore affirm in part and reverse in part the judgment of the Court of

Appeal and remand the matter for further proceedings.

I. THE PLEADINGS

Bridget’s complaint for damages alleges the following:

Plaintiff Bridget B. and defendant John B. met in September 1998 and

began dating shortly thereafter. The couple became engaged in late 1999 and were

married in July 2000. During this period, John represented to Bridget that he was

healthy, disease-free, and monogamous. Indeed, it was John who insisted that the

couple stop using condoms during intercourse. Based on John’s representations,

Bridget complied with his demand to engage in unprotected sex. In September

2000, however, Bridget began to suffer from exhaustion and high fevers.

On October 1, 2000, Bridget learned that she had tested positive for HIV.

She was advised to undergo a second test and to have her husband tested as well.

The second test confirmed that Bridget was HIV positive. John, too, was

determined to be HIV positive. John’s doctor told Bridget that she had “brought

the HIV into the marriage.” The doctor prescribed medications for John that made

his viral load virtually undetectable. Bridget, on the other hand, was not offered

treatment; she was informed that she had “had the illness for a long time.” Bridget

became depressed that she had infected her husband with this deadly disease.

In September 2001, John began telling others that Bridget had infected him

with HIV. The next month, after defendant refused to continue his treatment, he

became much sicker and developed sores on his face and scalp. Although he was

diagnosed with AIDS, he refused all treatments and medications except those that

treated the visible signs of the disease.

In November 2001, Bridget began to doubt that she had been the cause of

defendant’s infection. John responded by asking whether she was “accusing” him

of bringing HIV into their lives and advised “it would not be healthy for their

3



marriage to blame him.” The following month, however, John admitted to Bridget

that he had had sexual relations with men before their marriage. The complaint

further alleges that John also engaged in sexual relations with men during their

marriage and used the Internet to solicit these relationships.

The first cause of action (intentional infliction of emotional distress) alleges

in material part that John knew he was HIV positive before he married Bridget and

before he engaged in unprotected sexual relations with her, that he infected her

with HIV knowingly and intentionally, and that he then falsely accused her of

infecting him. It further alleges that Bridget was unaware that John had been

unfaithful prior to and during their marriage, which put her at great risk for HIV,

AIDS, syphilis, and other sexually transmitted diseases, and that she would not

have engaged in unprotected sexual relations with him had she known of his

infidelity.

The second cause of action (negligent infliction of emotional distress)

alleges that John knew or had a reasonable belief that he had HIV, that he

nonetheless engaged in unprotected sex with Bridget, and that his negligence

caused her to become infected with HIV.

The third cause of action (fraud) alleges that John falsely represented that

he did not have any communicable diseases, including HIV, AIDS, or syphilis;

that Bridget engaged in unprotected sexual relations with John in reliance on those

representations; and that John thereby infected her with HIV.

The fourth cause of action (negligence) incorporates the foregoing

allegations and alleges that John owed Bridget a duty of care to disclose the fact

that he was HIV positive, that he breached this duty, and that he thereby infected

her with HIV.

John’s answer denied every allegation in the complaint and alleged instead

that “[i]f either party transmitted the HIV virus to the other, it was Plaintiff who

4



transmitted the virus to the Defendant.” The answer also asserted Bridget’s

comparative fault as a defense in that she had “intimate sexual relations with

Defendant without using condoms or any other form of protection against the HIV

virus or other sexually transmitted diseases.” In a declaration attached to his

motion for summary judgment, John stated that he had been tested for HIV in

connection with a life insurance application on August 17, 2000, and was found to

be negative. John further alleged that he did not discover he was HIV positive

until October 13, 2000.

II. DISCOVERY PROCEEDINGS

As relevant here, Bridget’s pretrial discovery included the service of

special interrogatories and requests for admission concerning John’s sexual history

and his awareness of his HIV infection. Bridget also subpoenaed John’s medical

and employment records. John objected to each and every special interrogatory

and request for admission and also filed motions to quash the subpoenas duces

tecum. After plaintiff filed motions to compel responses to the interrogatories and

requests for admission, the parties stipulated to the appointment of a discovery

referee to hear the pending discovery motions and to make nonbinding

recommendations. The referee recommended that John’s objections be overruled

and his motions to quash be denied. The superior court adopted the referee’s

recommendations.

John filed the instant petition for writ of mandate. The Court of Appeal

issued an order to show cause and granted the petition as to four interrogatories

and two requests for admission, but otherwise denied relief in a published opinion.

Because the issue before us concerns the permissible scope of discovery

propounded by Bridget, we describe with particularity the discovery requests in

controversy and John’s objections to them below.

5



A. The Special Interrogatories

Bridget served special interrogatories that required John to state (1) the

name, address, and telephone number of every man with whom he has had sexual

relations in the last 10 years; (2) the date of his first sexual encounter with a man;

(3) the date of his last sexual encounter with a man; (4) the name, address, and

telephone number of every man with whom he has had unprotected sex in the last

10 years; (5) the date on which he first became aware he was HIV positive; (6) the

date on which he first became aware he had AIDS; (7) the date on which he first

told Bridget that he had engaged in unprotected sex with men; (8) the name,

address, and telephone number of every HIV-positive man with whom he has had

unprotected sex; (9) the name, address, and telephone number of every man who

has AIDS and with whom he has had unprotected sex; (10) the number of sexual

encounters with men he has had in the five years prior to his relationship with

Bridget; (11) the date of his last sexual encounter with a man prior to the date of

his engagement to Bridget; (12) the date of every sexual encounter he had with a

man between his engagement to Bridget and the wedding; and (13) the number of

sexual encounters he has had with men since he first met Bridget.

John objected to each of these interrogatories as burdensome, oppressive,

overly broad, and harassing, and claimed that they were an invasion of his right to

privacy under the state and federal Constitutions. He also objected to selected

interrogatories as violative of the physician-patient privilege (Evid. Code, § 990 et

seq.) and Health and Safety Code section 120975. In his responses, John disclosed

only that he first discovered he had tested positive for HIV on October 13, 2000.

The Court of Appeal granted John’s petition for writ of mandate as to

interrogatories Nos. 1, 4, 8, and 9, which sought the identities of his previous

sexual partners, and denied relief as to the rest. Bridget had asserted a need to

discover the identities of these sexual partners on the ground that John might have

6



told these persons he had HIV but, as the Court of Appeal observed, she offered

“nothing to support the suggestion that John may have disclosed his condition at

an undisclosed time to an undisclosed person.”

B. The Requests for Admission

Bridget requested John to admit that (1) he had had unprotected sexual

relationships with multiple men in the 10 years prior to meeting Bridget; (2) he

never told Bridget before they were married that he had had any sexual

relationships with men; (3) he had AIDS prior to the time he first had unprotected

sex with Bridget; (4) he knew he had AIDS prior to the time he first had

unprotected sex with Bridget; (5) he transmitted AIDS to Bridget; (6) he

transmitted HIV to Bridget; (7) he never told Bridget, prior to the time he had

unprotected sex with her, that he had had unprotected sexual encounters with men;

(8) he knew that his lifestyle prior to the time that he met Bridget put him at risk of

acquiring HIV; (9) he never told Bridget, prior to having unprotected sex with her,

about his lifestyle of having unprotected sex with men; (10) he continued to have

unprotected sexual relationships with men after he was married; (11) prior to his

marriage, he hid his sexual relations with men from Bridget; (12) he knew he had

a history of having unprotected sexual relations with men that put him at risk of

acquiring HIV at the time he accused Bridget of infecting him with HIV; (13) he

has AIDS; (14) he knew he had AIDS before he married Bridget; and (15) he hid

his sexual relations with men from Bridget before the wedding.

John objected to each of these requests as burdensome, oppressive, overly

broad, and harassing, and claimed that they were an invasion of his right to

privacy under the state and federal Constitutions. He also objected to selected

requests as violative of Health and Safety Code section 120975.

The Court of Appeal granted John’s petition for writ of mandate as to

requests Nos. 8 and 9, which referred to his “lifestyle,” but denied relief as to the

7



rest. The Court of Appeal determined that the word “lifestyle” was vague and

ambiguous and, to the extent it suggested a sexual orientation, impermissibly

intruded into John’s zone of sexual privacy.

C. The Subpoenas of Medical and Employment Records and the

Results of HIV Tests

Bridget subpoenaed John’s medical records, seeking the results of any HIV

and AIDS tests, medical records concerning HIV and AIDS and treatment for

those conditions, medical records concerning any and all sexually transmitted

diseases since 1980, and medical records concerning any “treatment” he had

received since 1980. Bridget also subpoenaed John’s employment records from

Universal Studios, including records “regarding his medical leave and the reasons

therefor” and “any disability he was suffering from.”

John filed a motion to quash the subpoenas on the grounds that the

subpoenas were not supported by affidavits or declarations as required by Code of

Civil Procedure section 1985, subdivision (b) or by good cause; that the records

were privileged from discovery under the right to privacy in the state and federal

Constitutions; that the records were additionally privileged from discovery under

Health and Safety Code section 120975 and Evidence Code sections 994 and

1014; and that the subpoenas constituted harassment.

The referee recommended the motions to quash be denied but limited the

discoverable medical records relating to treatment since 1980 to “those regarding

treatment received ‘for AIDS or HIV infection.’ ” The superior court adopted the

referee’s recommendation, and the Court of Appeal denied relief as to this part of

the order.

III. DISCUSSION

John asserts a number of reasons for limiting discovery of his sexual history

and HIV status, including his constitutional right to privacy, but we first determine

8



whether the requested discovery comports with statutory requirements. (See

Schnabel v. Superior Court (1993) 5 Cal.4th 704, 711; Vinson v. Superior Court

(1987) 43 Cal.3d 833, 838.) “ ‘Under the discovery statutes, information is

discoverable if it is unprivileged and is either relevant to the subject matter of the

action or reasonably calculated to reveal admissible evidence.’ ” (Schnabel,

supra, 5 Cal.4th at p. 711.) “Discovery may relate to the claim or defense of the

party seeking discovery or of any other party to the action.” (Code Civ. Proc.,

§ 2017.010.) “In reviewing an order of a superior court granting discovery, we

recognize at the threshold that ‘the discovery statutes vest a wide discretion in the

trial court in granting or denying discovery’ and ‘such exercise [of discretion] may

only be disturbed when it can be said that there has been an abuse of discretion.’ ”

(Pacific Tel. & Tel. Co. v. Superior Court (1970) 2 Cal.3d 161, 171.)

The subject matter of this action concerns Bridget’s allegation that John

infected her with HIV. The gist of the four causes of action—intentional infliction

of emotional distress, negligent infliction of emotional distress, fraud, and

negligence—is that John represented to Bridget that he was monogamous and had

no sexually transmitted diseases; that John made these representations to convince

Bridget to engage in unprotected sex with him; that, contrary to these

representations, John had not been monogamous and had knowledge, actual or

constructive, that he was HIV positive; that John nonetheless had unprotected sex

with Bridget without telling her that he was HIV positive; and that Bridget was

unaware that John was HIV positive and had not been monogamous. In his

defense, John denies infecting Bridget and asserts that if either party infected the

other, Bridget infected him.

In light of these allegations, the special interrogatories and requests for

admission at issue are within the statutory limits of discoverability. Bridget seeks

to discover whether John has AIDS (request for admission No. 13); whether he

9



infected her with HIV and AIDS (request for admission Nos. 5, 6); when John first

became aware that he was HIV positive (special interrogatory No. 5); and when he

first discovered that he had developed AIDS (special interrogatory No. 6; request

for admission Nos. 3, 4, 14). For her claims concerning infliction of emotional

distress, Bridget asked John to admit that he knew his sexual behavior had put him

at risk of contracting HIV at the time he accused her of infecting him. (Request

for admission No. 12.) To help establish that she had been justifiably ignorant of

John’s HIV status, Bridget propounded discovery designed to show that John did

not tell her he had previously engaged in unprotected sex with men. (Special

interrogatory No. 7; request for admission Nos. 2, 7, 11, 15.) Finally, Bridget

sought to establish that John had infected her (and not the other way around) by

asking John to admit that he had engaged in unprotected sex with men prior to

meeting her and during their courtship, engagement, and marriage and by

inquiring into the dates and numbers of these encounters. (Special interrogatory

Nos. 2, 3, 10-13; request for admission Nos. 1, 10.)

Having determined that the discovery requests authorized by the Court of

Appeal meet the statutory standard of discoverability, we proceed to consider

John’s specific objections.

A. Whether Discovery Must Be Limited Because the Torts in the

Complaint Require Proof That the Infected Individual Had Actual

Knowledge of the Infection

John does not deny he would be liable if he had actual knowledge he was

infected with HIV and failed to disclose that fact to Bridget. However, he

vigorously denies that he can be held liable if the evidence shows only that he had

constructive knowledge he was infected with HIV. He concludes, therefore, that

discovery should be limited to those requests aimed at uncovering whether he had

actual knowledge that he was infected with HIV. According to John, such

10



knowledge can be established only by a positive HIV test from an accredited

laboratory or a medical diagnosis of HIV or AIDS.

John’s proposed limitation on discovery calls into question the scope of the

torts alleged in the complaint, principally the fourth cause of action for negligent

transmission of HIV. This court has not yet had occasion to consider the tort of

negligent transmission of a sexually transmitted disease, but the tort is far from

novel. Our sister jurisdictions have long imposed liability on individuals who

have harmed others by transmitting communicable diseases. (See, e.g., Berner v.

Caldwell (Ala. 1989) 543 So.2d 686, 688 [“For over a century, liability has been

imposed on individuals who have transmitted communicable diseases that have

harmed others”]; Crowell v. Crowell (N.C. 1920) 105 S.E. 206, 208 [“it is a well-

settled proposition of law that a person is liable if he negligently exposes another

to a contagious or infectious disease”]; see generally 39 Am.Jur.2d (1999) Health,

§ 99, p. 549 [“The general principle is established that a person who negligently

exposes another to an infectious or contagious disease, which such other thereby

contracts, is liable in damages”].) In particular, courts throughout the United

States have recognized a cause of action for the negligent transmission of sexually

transmitted diseases. (E.g., McPherson v. McPherson (Me. 1998) 712 A.2d 1043,

1045 [citing cases]; Hamblen v. Davidson (Tenn.Ct.App. 2000) 50 S.W.3d 433,

438 [“all the jurisdictions which have considered the issue”]; Doe v. Johnson

(W.D.Mich. 1993) 817 F.Supp. 1382, 1389 [citing cases].) California appellate

courts are in accord. (Doe v. Roe (1990) 218 Cal.App.3d 1538, 1543 & fn. 3;

Kathleen K. v. Robert B. (1984) 150 Cal.App.3d 992, 996-997.) We agree with

these courts that “[t]o be stricken with disease through another’s negligence is in

legal contemplation as it often is in the seriousness of consequences, no different

from being struck with an automobile through another’s negligence.” (Billo v.

Allegheny Steel Co. (Pa. 1937) 195 A. 110, 114.)

11



To prevail in an action for negligence, the plaintiff must demonstrate that

the defendant owed a duty to the plaintiff, that the defendant breached that duty,

and that the breach proximately caused the plaintiff’s injuries. (Wiener v.

Southcoast Childcare Centers, Inc. (2004) 32 Cal.4th 1138, 1145.)

The existence of a legal duty is a question of law for the court. (Delgado v.

Trax Bar & Grill (2005) 36 Cal.4th 224, 237.) “As this court has explained,

‘duty’ is not an immutable fact of nature ‘ “but only an expression of the sum total

of those considerations of policy which lead the law to say that the particular

plaintiff is entitled to protection.” ’ [Citations.] In California, the general rule is

that all persons have a duty ‘ “to use ordinary care to prevent others being injured

as the result of their conduct. . . .” ’ (Rowland v. Christian (1968) 69 Cal.2d 108,

112 [70 Cal.Rptr. 97, 443 P.2d 561] (citations omitted); Civ. Code, § 1714.)”

(Ballard v. Uribe (1986) 41 Cal.3d 564, 572-573, fn. 6.) Foreseeability of harm is

a “ ‘crucial factor’ ” in determining the existence and scope of that duty.

(Delgado, supra, 36 Cal.4th at p. 237.)

John concedes that a person who actually knows he or she is infected with a

sexually transmitted disease based on a test from an accredited laboratory or a

medical diagnosis has a duty to use ordinary care to see that the disease is not

transmitted to others. The foreseeability of harm in such a circumstance is

manifest. John also concedes the viability of the tort of negligent transmission of

HIV. In his view, though, a duty under this tort exists only when the actor has

actual knowledge of being HIV positive; constructive knowledge of the infection

is insufficient.

Tellingly, neither John nor our dissenting colleagues have identified a

single jurisdiction that has limited liability for negligent transmission of HIV or

other sexually transmitted diseases only to those who have actual knowledge they

are infected. Our sister states instead impose liability when the actor has

12



knowledge, actual or constructive, of a sexually transmitted disease. (Berner v.

Caldwell, supra, 543 So.2d at pp. 689-690 & fn. 4 [applying this standard to the

transmission of herpes and noting that the same duty could be imposed for other

sexually transmitted diseases, including AIDS]; Meany v. Meany (La. 1994) 639

So.2d 229, 236; McPherson v. McPherson, supra, 712 A.2d at p. 1046; Deuschle

v. Jobe (Mo.Ct.App. 2000) 30 S.W.3d 215, 219; M.M.D. v. B.L.G. (Minn.Ct.App.

1991) 467 N.W.2d 645, 647 [liability for negligent transmission of herpes exists

where boyfriend had history of genital sores but had not been diagnosed with

herpes]; Mussivand v. David (Ohio 1989) 544 N.E.2d 265, 270 [“We find the

reasoning of these other jurisdictions persuasive”]; Plaza v. Estate of Wisser

(App.Div. 1995) 626 N.Y.S.2d 446, 451-452 [allegations of decedent’s actual and

constructive knowledge he was infected with HIV was sufficient to withstand

motion to dismiss claims of fraud and negligence]; Hamblen v. Davidson, supra,

50 S.W.3d at p. 439 [noting that “the majority of states who have addressed the

issue” extend liability to those with actual or constructive knowledge of the

sexually transmitted disease]; Doe v. Johnson, supra, 817 F.Supp. at p. 1391

[liability for negligent transmission of HIV includes those who “knew s/he was

suffering symptoms associated with the HIV virus . . . or . . . knew of a prior sex

partner who was diagnosed as having the HIV virus”]; accord, 65 C.J.S. (2000)

Negligence, § 171, p. 503.)

Extending liability to those who have constructive knowledge of the

disease, as these jurisdictions have done, comports with general principles of

negligence. Indeed, the “very concept of negligence presupposes that the actor

either does foresee an unreasonable risk of injury, or could have foreseen it if he

conducted himself as a reasonably prudent person.” (3 Harper et al., The Law of

Torts (2d ed. 1986) § 16.5, p. 397; accord, Prosser & Keeton on Torts (5th ed.

1984) § 32, pp. 182-185; Rest.2d Torts, §§ 289, 290; Nolte, The Spoliation Tort:

13



An Approach to Underlying Principles (1994) 26 St. Mary’s L.J. 351, 380

[“negligence law regularly utilizes the concept of constructive knowledge as the

requisite notice”].) Because “ ‘[a]ll persons are required to use ordinary care to

prevent others being injured as a result of their conduct’ ” (Rowland v. Christian,

supra, 69 Cal.2d at p. 112), this court has repeatedly recognized a cause of action

for negligence not only against those who have actual knowledge of unreasonable

danger, but also against those who have constructive knowledge of it. (See, e.g.,

Ortega v. Kmart Corp. (2001) 26 Cal.4th 1200, 1210; Toland v. Sunland Housing

Group, Inc. (1998) 18 Cal.4th 253, 260, fn. 1; Kentucky Fried Chicken of Cal.,

Inc. v. Superior Court (1997) 14 Cal.4th 814, 823; Garcia v. Superior Court

(1990) 50 Cal.3d 728, 735; Hasson v. Ford Motor Co. (1982) 32 Cal.3d 388, 407.)

Neither John nor our dissenting colleagues have pointed to any indication that the

Legislature intended a lesser duty to apply to HIV.

Moreover, limiting tort defendants to those who have actual knowledge

they are infected with HIV would have perverse effects on the spread of the virus.

If only those who have been tested are subject to suit, there may be “an incentive

for some persons to avoid diagnosis and treatment in order to avoid knowledge of

their own infection.” (Gostin & Hodge, Piercing the Veil of Secrecy in HIV/AIDS

and Other Sexually Transmitted Diseases: Theories of Privacy and Disclosure in

Partner Notification (1998) Duke J. Gender L. & Poly. 9, 40.) Extending liability

to those with constructive knowledge of the disease, on the other hand, “will

provide at least a small incentive to others to use proper diagnostic techniques and

to alter behavior and procedures so as to limit the likelihood of HIV transmission.”

(Hermann, Torts: Private Lawsuits about AIDS in AIDS and the Law: A Guide

for the Public (Dalton & Yale AIDS Law Project edits., 1987) p. 172 (Hermann).)

Justice Moreno offers no support for his view that tort liability would have no

effect on human behavior in this context.

14



It must be noted, though, that “constructive knowledge,” which means

knowledge “that one using reasonable care or diligence should have, and therefore

is attributed by law to a given person” (Black’s Law Dict. (7th ed. 1999) p. 876),

encompasses a variety of mental states, ranging from one who is deliberately

indifferent in the face of an unjustifiably high risk of harm (see Farmer v. Brennan

(1994) 511 U.S. 825, 836-840) to one who merely should know of a dangerous

condition (see Ortega v. Kmart Corp., supra, 26 Cal.4th at pp. 1208-1209). At

this early stage, when no facts have yet been developed, the issue is not which of

these mental states is required for the tort of negligent transmission of HIV, but

what is permissible discovery for a party seeking to prove such a tort. In

determining whether the requested discovery satisfies statutory requirements,

therefore, we should recognize a duty no broader than is necessary to resolve the

current discovery dispute.

In this case, we conclude that the tort of negligent transmission of HIV does

not depend solely on actual knowledge of HIV infection and would extend at least

to those situations where the actor, under the totality of the circumstances, has

reason to know of the infection. Under the reason-to-know standard, “the actor

has information from which a person of reasonable intelligence or of the superior

intelligence of the actor would infer that the fact in question exists, or that such

person would govern his conduct upon the assumption that such fact exists.”

(Rest.2d Torts, § 12, subd. (1).) In other words, “the actor has knowledge of facts

from which a reasonable man of ordinary intelligence or one of the superior

intelligence of the actor would either infer the existence of the fact in question or

15



would regard its existence as so highly probable that his conduct would be

predicated upon the assumption that the fact did exist.” (Id., § 12, com. a., p. 20.)1

Imposing liability for the transmission of HIV where the actor knows or has

reason to know he or she is HIV positive is consistent with the general principle of

California law that “ ‘[a]ll persons are required to use ordinary care to prevent

others being injured as the result of their conduct.’ ” (Rowland v. Christian,

supra, 69 Cal.2d at p. 112.) “Although it is true that some exceptions have been

made to the general principle that a person is liable for injuries caused by his

failure to exercise reasonable care in the circumstances, it is clear that in the

absence of a statutory provision declaring an exception to the fundamental

principle enunciated by section 1714 of the Civil Code, no such exception should

be made unless clearly supported by public policy.” (Ibid.; see also Randi W. v.

Muroc Joint Unified School Dist. (1997) 14 Cal.4th 1066, 1077 (Randi W.).)

“Before judicially establishing an exception based on public policy, [we] consider

a variety of factors; ‘the major ones are the foreseeability of harm to the plaintiff,

the degree of certainty that the plaintiff suffered injury, the closeness of the

connection between the defendant’s conduct and the injury suffered, the moral

blame attached to the defendant’s conduct, the policy of preventing future harm,

the extent of the burden to the defendant and consequences to the community of


1

We note that the Proposed Final Draft of section 18, subdivision (a) of the

Restatement Third of Torts, Liability for Physical Harm, imposes a duty to warn
or to adopt further precautions if “the defendant knows or has reason to know” of
the risk and “that those encountering the risk will be unaware of it.” Included in
the examples of the “range of defendant conduct that can give rise” to this duty is
“the defendant who is about to come into intimate contact with the plaintiff . . . for
failing to warn the plaintiff that the defendant suffers from a communicable
disease.” (Rest.3d Torts; Liability for Physical Harm (Proposed Final Draft No. 1,
Apr. 1, 2005) § 18, com. a, p. 247.)

16



imposing a duty to exercise care with resulting liability for breach, and the

availability, cost, and prevalence of insurance for the risk involved.’ ” (Merrill v.

Navegar, Inc. (2001) 26 Cal.4th 465, 477.)

An analysis of these factors does not justify a departure from the general

rule in this instance. The factor that “ ‘plays a very significant role in this

calculus’ ” (Randi W., supra, 14 Cal.4th at p. 1077) is the foreseeability of the

particular harm, which (like the reason-to-know standard) is assessed by an

objective test. (See id. at pp. 1077-1078.) When the actor has reason to know of

the HIV infection—i.e., when there is sufficient information to cause a reasonably

intelligent actor to infer he or she is infected with the virus or that infection is so

highly probable that his or her conduct would be predicated on that assumption—

the potential for harm through sexual transmission of the virus is reasonably

foreseeable. As to causation, Bridget has plausibly alleged that John infected her

during unprotected sex. (See id. at p. 1078.) Whether John’s conduct is morally

blameworthy will depend on the evidence uncovered during discovery, but it is

certainly arguable that failing to exercise due care to prevent the transmission of a

gravely serious disease of which the actor knows or has reason to know falls in

that category. (Ibid.)

Moreover, society has an overriding policy of preventing the spread of

sexually transmitted diseases (see Health & Saf. Code, § 120290), especially HIV

(see, e.g., Health & Saf. Code, § 120291), which would be enhanced by imposing

a duty of care on those who have reason to know they are infected with HIV. The

burden of a duty of care on defendants who know or have reason to know of their

HIV infection is minimal, and the consequences for the community would be

salutary. (Cf. Health & Saf. Code, § 121015, subd. (a) [permitting physicians and

surgeons to disclose to “a person reasonably believed to be the spouse, or to a

person reasonably believed to be a sexual partner or a person with whom the

17



patient has shared the use of hypodermic needles, . . . that the patient has tested

positive on a test to detect HIV infection, except that no physician and surgeon

shall disclose any identifying information about the individual believed to be

infected”].) Indeed, limiting liability only to those who have actual knowledge

they are infected would discourage those who fear they may be infected from

getting tested, which would be contrary to the public policy of encouraging testing

for and preventing the spread of HIV and thwart the effectiveness of new

treatments that depend on early diagnosis of the virus.

In sum, none of the factors above justifies a departure from the general

negligence rule imposing a duty on those who have actual or constructive

knowledge of a dangerous condition. At the same time, we are mindful that our

precedents direct us to consider whether a duty of care exists “ ‘on a case-by-case

basis.’ ” (Parsons v. Crown Disposal Co. (1997) 15 Cal.4th 456, 472.)

Accordingly, our conclusion that a claim of negligent transmission of HIV lies

against those who know or at least have reason to know of the disease must be

understood in the context of the allegations in this case, which involves a couple

who were engaged and subsequently married; a defendant who falsely represented

himself as monogamous and disease-free and insisted the couple stop using

condoms; and a plaintiff who agreed to stop using condoms in reliance on those

false representations. We need not consider the existence or scope of a duty for

persons whose relationship does not extend beyond the sexual encounter itself,

whose relationship does not contemplate sexual exclusivity, who have not

represented themselves as disease-free, or who have not insisted on having sex

without condoms.

The discovery Bridget has requested comports with the reason-to-know

standard. Evidence that John engaged in unprotected sex outside the relationship

during the relevant period and hid these encounters from Bridget, even if

18



insufficient to establish the requisite knowledge for a negligence claim, might

reasonably lead to the discovery of evidence as to John’s awareness of the HIV

status of those partners—without even disclosing their identities, contrary to

Justice Werdegar’s assumption—and thus may be relevant to whether John knew

or had reason to know he was infected with HIV. (Doe v. Johnson, supra, 817

F.Supp. 1395-1396.) Similarly, evidence that John had symptoms consistent with

HIV infection may be insufficiently distinctive to indicate HIV infection by itself

but may be relevant to whether John knew or had reason to know he was infected

when considered in combination with his alleged history of engaging in

unprotected sex outside the relationship.

John fails to consider whether the requested information, even if

insufficient to establish the requisite knowledge by itself, may be relevant to the

existence of such knowledge or reasonably calculated to lead to evidence on that

point. He (like our dissenting colleagues) argues instead that the framework for

other sexually transmitted diseases ought not be applied to HIV, but does not offer

persuasive bases for distinguishing HIV from the other diseases. After careful

analysis of John’s argument, we cannot agree that persons who have reason to

know they are infected with HIV, a gravely serious disease with no known cure,

should be subject to a lesser duty of care than persons who have reason to know

they are infected with other sexually transmitted diseases.

John contends that because carriers of HIV may be asymptomatic, possible

symptoms of HIV (other than those distinctively and idiosyncratically associated

with the virus, such as Kaposi’s sarcoma), are irrelevant. But merely because

“[m]any people who are infected with HIV do not have any symptoms at all for

19



many years”2 does not mean that plaintiffs are barred from discovering whether a

particular defendant did have unique or diffuse symptoms and whether those

symptoms, singly or in combination with other factors, gave the defendant reason

to know he or she was infected with HIV. Many sexually transmitted diseases—

such as chlamydia,3 gonorrhea,4 syphilis,5 herpes,6 and human papillomavirus

(HPV)7—likewise commonly present asymptomatically at the initial stages or

2

United States Department of Health and Human Services, Centers for

Disease Control and Prevention (CDC), HIV/AIDS Prevention in the United
States FAQ: How can I Tell if I’m Infected with HIV?, at
<http://www.cdc.gov/hiv/pubs/faq/faq5.htm> (as of July 3, 2006).
3

“Chlamydia is known as a ‘silent’ disease because about three quarters of

infected women and about half of infected men have no symptoms.” (CDC,
Sexually Transmitted Diseases, Chlamydia—CDC Fact Sheet, at
<http://www.cdc.gov/std/Chlamydia/STDFact-Chlamydia.htm> [as of July 3,
2006].)
4

“Although many men with gonorrhea may have no symptoms at all, some

men have some signs or symptoms that appear two to five days after infection;
symptoms can take as long as 30 days to appear. . . . [¶] In women, the symptoms
of gonorrhea are often mild, but most women who are infected have no symptoms.
Even when a woman has symptoms, they can be so non-specific as to be mistaken
for a bladder or vaginal infection.” (CDC, Sexually Transmitted Diseases,
Gonorrhea—CDC Fact Sheet, at <http://www.cdc.gov/std/gonorrhea/STDFact-
gonorrhea.htm> [as of July 3, 2006].)
5

“Many people infected with syphilis do not have any symptoms for years.”

“It has often been called ‘the great imitator’ because so many of the signs and
symptoms are indistinguishable from those of other diseases.” (CDC, Sexually
Transmitted Diseases, Syphilis—CDC Fact Sheet, at
<http://www.cdc.gov/std/Syphilis/STDFact-Syphilis.htm> [as of July 3, 2006].)
6

“Most people infected with HSV-2 [herpes simplex virus type 2] are not

aware of their infection. . . . [T]hey may have very mild signs that they do not
even notice or that they mistake for insect bites or another skin condition.” (CDC,
Sexually Transmitted Diseases, Genital Herpes—CDC Fact Sheet, at
<http://www.cdc.gov/std/Herpes/STDFact-Herpes.htm> [as of July 3, 2006].)
7

“Most HPV infections have no signs or symptoms; therefore, most infected

persons are unaware they are infected, yet they can transmit the virus to a sex
partner.” (CDC, Sexually Transmitted Diseases, Genital Herpes—CDC Fact
Sheet, at <http://www.cdc.gov/std/HPV/STDFact-HPV.htm> [as of July 3, 2006].)

20



have nonspecific symptoms that can be confused with other, more common

diseases. Yet, we have been pointed to no decision that has invoked the possible

difficulties of establishing the requisite knowledge of these diseases in some

instances as a justification for categorically foreclosing recovery in all cases. To

the contrary, courts here and elsewhere have regularly found negligence when the

evidence does show the defendant knew or had reason to know of infection with

these sexually transmitted diseases. John fails to explain why Bridget should be

precluded from discovering whether he harbored such knowledge in this case.8

John also complains that the risk of transmission of HIV in any individual

act of intercourse is so low as to make it unreasonable to impose a duty of care on

someone who is not actually aware he or she is infected. We disagree. A low risk


8

At oral argument, John abandoned our dissenting colleagues’ contention

that actual knowledge is an essential predicate to liability. He claimed instead that
actual knowledge of HIV infection, as verified by a medical diagnosis or test, or
constructive knowledge based on a very limited category of symptoms of HIV
(namely, Kaposi’s sarcoma) or a medical opinion was required before an
individual could be liable for negligent transmission of HIV. He also urged the
court to “lock in the duty” he described so as to avoid having to consider
“constantly evolving medical and epidemiological information” concerning the
disease.


Once again, John has failed to cite any legal authority for the limited duty

he proposes. Nonetheless, his concession demonstrates the appropriateness of
imposing liability on those who, under the totality of the circumstances, have
reason to know they are infected. As stated earlier, it is premature to decide here
which physical symptoms, considered in isolation or in combination with conduct
reasonably likely to have resulted in the transmission of the virus, would support a
finding of liability for negligent transmission of HIV. The question of duty
depends on the facts of a particular case, including available medical and
epidemiological information. This opinion does not purport to offer a primer on
proving the tort of negligent transmission of HIV, but inquires only whether the
discovery Bridget has requested is relevant to the tort or is reasonably calculated
to lead to the discovery of admissible evidence. We therefore decline John’s
invitation to “lock in the duty” he has described.

21



of transmission is insufficient to relieve the infected individual of a duty where the

harm itself is great and the duty of care to prevent that harm is not onerous. (See

Bigbee v. Pacific Tel. & Tel. Co. (1983) 34 Cal.3d 49, 57; Prosser & Keeton on

Torts, supra, § 31, p. 171 [“as the gravity of the possible harm increases, the

apparent likelihood of its occurrence need be correspondingly less to generate a

duty of precaution”].) The AIDS epidemic was and continues to be one of the

most dangerous of the modern era, killing over half a million Americans as of the

end of 2003. Despite the introduction of antiretroviral therapy, AIDS remains the

fifth leading cause of death among those ages 25 to 44. Sadly, HIV mortality

declines have slowed while, at the same time, AIDS diagnoses have risen. (The

Henry J. Kaiser Family Foundation, HIV/AIDS Policy Fact Sheet: The

HIV/AIDS Epidemic in the United States (Sept. 2005) p. 1 at

<http://www.kff.org/hivaids/3029-05.cfm> [as of July 3, 2006].) The medical

advances in combating HIV do not relieve infected individuals of their duty to

avoid transmitting what remains a very serious disease, nor should the efficacy of

those advances necessarily determine what discovery is permissible.

The dissenting opinions’ effort to narrow the duty of care for persons

infected with HIV is similarly unconvincing. Justice Moreno contends that the

general analytic framework of negligence cannot apply here because HIV

infection, unlike other sexually transmitted diseases, is “life-threatening.” (Dis.

opn. of Moreno, J., post, at p. 5.) The premise of his argument suffers from a

factual flaw; other sexually transmitted diseases, such as syphilis and HPV, are

also life-threatening. Moreover, the gravity of the harm from HIV infection is a

justification for imposing a greater duty of care on those who are infected (see

Prosser & Keeton on Torts, supra, § 31, p. 171; Rest.2d Torts, § 293, com. c, p.

59)—not, as Justice Moreno would have it, a basis for insulating those infected

from responsibility for their conduct in transmitting the virus to others. Justice

22



Moreno is also mistaken in assuming that HIV is “unique” (dis. opn. of Moreno,

J., post, at p. 6) in the opprobrium with which those infected are viewed. (See

Note, Liability in Tort for the Sexual Transmission of Disease: Genital Herpes

and the Law (1984) 70 Cornell L.Rev. 101, 107-108 [“The social stigma

associated with genital herpes prompted one popular news magazine to label the

disease the ‘new scarlet letter’ ”].) In any event, Justice Werdegar and Justice

Moreno fail at bottom to explain why the distinctions between HIV and other

sexually transmitted diseases are so fundamental as to warrant wholesale rejection

of ordinary tort principles in this case (cf. Hermann, supra, at p. 158 [in analyzing

liability for sexual transmission of HIV, “there is clear precedent in the analogous

area of transmission of genital herpes”]) or to identify any court that has

summarily absolved infected individuals of any responsibility for negligently

infecting an intimate partner with HIV.

Justice Moreno’s contention that the Legislature, by criminalizing the

intentional and knowing transmission of HIV, has evinced an intent to limit tort

liability only to those individuals who have actual knowledge they are infected

misapprehends the respective roles of criminal and tort law. That the Legislature

“has not adopted a constructive knowledge standard in statutes criminalizing the

transmission of AIDS” hardly “reflects a legislative judgment that a constructive

knowledge standard is not appropriate for purposes of imposing [tort] liability for

the transmission of HIV.” (Dis. opn. of Moreno, J., post, at p. 15.) After all, the

Legislature typically intends a lowered standard be required for a civil suit to

recover damages than for a prosecution imposing criminal penalties, especially

where those penalties are substantial. For example, Health & Safety Code section

120291, which criminalizes the intentional and knowing transmission of HIV

through unprotected sexual activity, is punishable by up to eight years in prison—

but “conduct that is more, not less, culpable is required for imposition of criminal

23



penalties.” (People v. Simon (1995) 9 Cal.4th 493, 517.) “In the criminal context,

‘ordinary negligence sufficient for recovery in a civil action will not suffice.’ ”

(Williams v. Garcetti (1993) 5 Cal.4th 561, 573.) Thus, the fact the Legislature

did not attach criminal penalties to those persons who have reason to know they

carry HIV and nonetheless take no steps to avoid infecting others in no way

suggests that the Legislature intended to depart from Civil Code section 1714 or

from ordinary negligence principles in a civil action for negligent transmission of

HIV.9

The dissenting opinions’ suggestion that the duty of individuals infected

with HIV not to infect others—and not merely the permissibility of discovery

aimed at uncovering their HIV status—has somehow been limited by the

enactment of statutes protecting the confidentiality of HIV test results proves far

too much, inasmuch as the cause of action under the actual-knowledge standard

poses the same threat to the confidentiality of a defendant’s HIV test results as

9

In particular, we find remarkable our dissenting colleagues’ proposed rule

that even when substantial evidence indicates an HIV-positive individual has
reason to know of his or her infection, this individual owes no duty of care as a
matter of law to any sexual partner, and that such a duty could arise only when the
individual acquires actual knowledge of the infection—although neither Justice
Werdegar nor Justice Moreno ever defines how actual knowledge may be
established, other than to reject the definition Justice Kennard proposes. Thus,
under their proposed rule, an intravenous drug user who knowingly shares needles
daily with a circle of HIV-positive individuals and has symptoms “associated with
HIV” (dis. opn. of Moreno, J., post, at p. 3, fn. 1) owes no duty of care as a matter
of law when he or she insists on engaging in unprotected sex with or donates
blood to uninfected individuals. Or, to put it another way, a defendant spouse who
was in a relationship that “contemplated sexual exclusivity,” who “represented
himself as disease free and repeatedly insisted that the parties forgo the use of
condoms,” and who had reason to know he was infected with HIV has no duty
even to warn the other spouse. (Dis. opn. of Werdegar, J., post, at p. 2.) None of
the statutes cited by our colleagues even arguably suggests the Legislature
intended these results.

24



does a cause of action under the reason-to-know standard. Indeed, Justice Moreno

acknowledges that even an actual-knowledge standard would permit discovery

“directed at whether and when defendant had actual knowledge he was HIV

positive.” (Dis. opn. of Moreno, J., post, at p. 1.) The logical consequence of the

dissenting opinions’ reading of the statutory scheme, therefore, would be to

eliminate entirely the possibility of tort liability for the knowing or negligent

transmission of HIV, even when the discovery the plaintiff eventually seeks does

not tread on statutory confidentiality. Had the Legislature intended to abrogate

ordinary tort principles to such an extent, one would expect it to have expressed its

intent more clearly.10

In any event, it is not necessary to consider here whether a conflict exists

between Bridget’s entitlement to discover relevant evidence and Health and Safety

Code section 120975, which protects the identity of a person taking an HIV test.

As the Court of Appeal found, John waived (or is estopped from invoking) this

statutory protection by claiming in his answer that Bridget infected him with HIV

and by relying on a negative HIV test in support of his motion for summary

judgment. (See Taub, Doctors, AIDS, and Confidentiality in the 1990’s (1994) 27

J. Marshall L.Rev. 331, 335 [“courts have held that patients waived their


10

The dissenting opinions rely also on a false dichotomy between tort

recovery for those individuals who have been negligently infected with HIV and
legislative efforts to build awareness of HIV through education and voluntary
testing. Education and tort liability can—and invariably do—work hand in hand
in preventing harmful behavior. (Developments in the Law: Sexual Orientation
and the Law
(1989) 102 Harv. L.Rev. 1508, 1530, fn. 77 [“Education and tort suits
against persons transmitting AIDS through sexual conduct are other viable
alternatives for deterring AIDS transmission”].) We likewise disagree with Justice
Moreno that the best way to protect “the populations most vulnerable to infection”
with HIV is to reduce the incentive of all infected persons to guard against
transmission of the virus. (Dis. opn. of Moreno, J., post, at p. 16.)

25



confidentiality rights with respect to their HIV status by placing their medical

condition at issue in litigation”].) Nor need we consider the extent of permissible

discovery about the HIV status of third parties, since (as the dissenting opinions

concede) the discovery we have authorized does not include identifying

information about John’s sexual partners. In response to the dissenting opinions’

concerns about future discovery in this and other cases, we reiterate that we do not

(and properly cannot) opine as to the propriety of discovery requests that are not

before us.

Finally, Justice Moreno’s fear of a spate of shakedown lawsuits designed to

force lucrative settlements or to embarrass a former sexual partner is ill-founded

and overblown. Such a risk applies equally to tort actions under an actual

knowledge standard. Indeed, the risk inheres in a tort for the transmission of any

venereal disease. The fact that no jurisdiction has yet been deluged with such suits

persuasively rebuts this concern. Moreover, the use of protective orders, sealing

orders, and the identification of parties by their initials as well as the constitutional

and statutory limits on discovery will ensure that the burden on the litigants and

third parties will be minimized to the extent possible and should assuage the fear

that litigation will be used as a bludgeon or will become a media circus.

In sum, we are not persuaded that California should be the first jurisdiction

in the country to limit liability for the negligent transmission of HIV only to those

who have actual knowledge they are HIV positive.

B. Whether Discovery Must Be Limited Because of John’s Right to

Privacy Under the State Constitution

Article I, section 1 of the California Constitution recognizes a number of

inalienable rights, including the right to privacy. As we have previously observed,

the right of privacy extends to sexual relations (Vinson v. Superior Court, supra,

43 Cal.3d at p. 841) and medical records (Hill v. National Collegiate Athletic

26



Assn. (1994) 7 Cal.4th 1, 41). Accordingly, a litigant may invoke the

constitutional right to privacy as justification for refusing to answer questions that

unreasonably intrude on that right. (Britt v. Superior Court (1978) 20 Cal.3d 844,

855 [associational privacy]; Fults v. Superior Court (1979) 88 Cal.App.3d 899,

903 [sexual privacy].)

The right to privacy, however, is not absolute. In appropriate

circumstances, this right must be balanced against other important interests. (Hill

v. National Collegiate Athletic Assn., supra, 7 Cal.4th at p. 37.) “On occasion [a

party’s] privacy interests may have to give way to [the] opponent’s right to a fair

trial. Thus courts must balance the right of civil litigants to discover relevant facts

against the privacy interests of persons subject to discovery.” (Vinson v. Superior

Court, supra, 43 Cal.3d at p. 842.)

Here, defendant has invoked his constitutional right to privacy as

justification for refusing to answer questions concerning his HIV status or his

sexual history. Bridget, in turn, has identified not only “the historically important

state interest of facilitating the ascertainment of truth in connection with legal

proceedings” (In re Lifschutz (1970) 2 Cal.3d 415, 432), but also the state’s

compelling interest in preventing the spread of AIDS, a communicable and

dangerous disease. Penal Code section 12022.85, which provides for a three-year

enhancement if the perpetrator of specified felonies knows he or she is HIV

positive, and Health and Safety Code section 120291, which makes it a felony to

intentionally infect another with HIV, are strong statements by the Legislature that

the spread of HIV is a serious public health threat and that its control is of

paramount importance. (See generally Cruzan v. Director, Missouri Dept. of

Health (1990) 497 U.S. 261, 282 [recognizing the state’s “unqualified interest in

the preservation of human life”].)

27



In balancing these competing concerns, we note at the outset that this is not

a case in which a plaintiff seeks discovery to obtain information from a defendant

whose HIV status is unknown. Both parties have admitted they are HIV positive,

informally and in court filings. John thus has a diminished privacy interest in his

HIV status. (Cf. In re Marriage of Bonneau (Ill.App.Ct. 1998) 691 N.E.2d 123,

134 [declining to permit discovery of medical records where neither party’s HIV

status was alleged].) Moreover, not only does the complaint allege sufficient facts

to permit the inference that John infected Bridget with HIV, but John has alleged

that Bridget infected him. By thus putting his own medical condition at issue,

John has “substantially lowered” his expectation of privacy even further. (Heller

v. Norcal Mutual Ins. Co. (1994) 8 Cal.4th 30, 43.) After balancing the competing

interests in this case, we are persuaded that Bridget is entitled to discovery

concerning John’s sexual history and HIV status.

We emphasize, though, that Bridget is not entitled to discovery without

limit. As the Court of Appeal pointed out, even where the plaintiff can establish a

compelling state interest in discovery, “ ‘ “ ‘[p]recision of [compelled

disclosure]’ ” ’ is required so that the right of privacy is not ‘ “ ‘curtailed except to

the extent necessitated by the legitimate governmental objective.’ ” ’ ” Thus,

where a plaintiff seeks discovery from a defendant concerning sexual matters

protected by the constitutional right of privacy, the “intrusion upon sexual privacy

may only be done on the basis of ‘ “practical necessity” ’ (Fults v. Superior Court,

supra, at pp. 904-905), and ‘the compelled disclosure [must] be narrowly drawn to

assure maximum protection of the constitutional interests at stake.’ (Britt v.

Superior Court, supra, [20 Cal.3d] at p. 859.)” (Boler v. Superior Court (1987)

201 Cal.App.3d 467, 473-474.)

It is therefore essential to measure the closeness of the fit between the

requested discovery and the allegations of the complaint. The theory of Bridget’s

28



complaint is that John became infected with HIV prior to or during their

relationship by engaging in unprotected sex with other men, that he knew or had

reason to know he was infected before he engaged in unprotected sex with her,

that he did not share his knowledge with Bridget or otherwise take steps to prevent

transmission of the virus, and that he infected her with HIV during unprotected

sex. To prove these allegations, it is necessary for Bridget to inquire into John’s

medical records and his sexual activity, as the superior court and the Court of

Appeal found.

Not all of the discovery authorized by the superior court and the Court of

Appeal satisfies this heightened standard, however. To the extent that special

interrogatory Nos. 3 and 13 and request for admission No. 10 seek information

concerning John’s sexual conduct after the couple stopped having sex—which,

according to the complaint, was sometime during the honeymoon in July 2000—

they are overbroad. John’s sexual conduct after the cessation of marital sexual

relations could not have resulted in the transmission of HIV to Bridget through

sexual relations as alleged in the complaint, nor would it shed light on whether

John knew or had reason to know that he was HIV positive at the time he and

Bridget engaged in unprotected sex. Bridget thus has failed to identify the

practical necessity for discovery of John’s sexual conduct subsequent to their

honeymoon.

The Court of Appeal also erred in upholding discovery into John’s sexual

behavior dating back years before he even met Bridget. Under the record as it

currently stands, Bridget has failed to identify the practical necessity for discovery

of John’s sexual conduct any earlier than the six months that preceded his negative

HIV test.

John’s declaration in support of his motion for summary judgment states

that he was tested for HIV in connection with a life insurance application on

29



August 17, 2000, and includes a copy of the lab report. The results were negative.

Based on information from the Centers for Disease Control that the window period

between exposure to HIV and the production of sufficient antibodies to detect the

presence of the virus in the blood can last up to six months,11 John reasons that he

“was necessarily HIV negative six months prior to August 17, i.e., mid-February

2000, and at every prior time in his life.” He therefore contends that any

discovery related to his sexual history must be limited to the six-month window

period. Bridget responds that John’s negative HIV test in August 2000 is “a mere

allegation which defendant has advanced as a part of his ‘she-infected-me’ defense

and which plaintiff intends to prove to be patently false. Obviously, discovery

cannot serve to debunk a lie if discovery is thwarted by having to assume the truth

of the lie.”

The defect in Bridget’s response is that John’s negative HIV test is not a

mere allegation. John has supported his allegation with an applicant profile from

Intellisys reflecting the results of his HIV test. If the test is accurate, and if the

latency period for development of HIV antibodies is no longer than six months,

John could not have been infected any earlier than February 2000. Under those

circumstances, as Bridget’s counsel conceded at oral argument, John’s sexual

behavior during that earlier period would not be relevant to the issue of when he

became infected. In other words, Bridget has not demonstrated, under the

heightened standard applicable to constitutional rights of privacy, a practical

necessity for discovery of John’s sexual conduct before he could have been

infected with HIV.


11

CDC, HIV/AIDS Prevention in the United States, FAQ: Symptoms;

Testing; Treatment: How long after a possible exposure should I wait to get tested
for HIV?, at <http://www.cdc.gov/hiv/pubs/faq/faq9.htm> (as of July 3, 2006).

30



On the other hand, as Bridget’s counsel explained at oral argument, it is

possible that Bridget could offer evidence to cast doubt on the results of the

August 2000 HIV test, such as by challenging the accuracy or reliability of an

insurance application test or by offering expert testimony that the test was

inconsistent with John’s development of full-blown AIDS the following year. If

Bridget were to offer some basis to question the August 2000 test, or to adduce

evidence that the time period from exposure to the virus to the development of

antibodies in the blood can be longer than six months, then she may be entitled to

discovery covering a broader time period. That option remains open to Bridget on

remand. Because Bridget has not yet done so, however, we must balance John’s

constitutional right to privacy against Bridget’s need for discovery based on the

record as it currently stands. We must therefore limit her discovery requests

concerning John’s sexual behavior to the period between February 17, 2000, the

earliest date at which John could have been infected, through July 2000, when the

couple last had sexual relations.

Finally, we emphasize that we have not been asked and therefore express

no views as to what measures the trial court should employ to maintain the

confidentiality of the materials produced in discovery. The propriety of in camera

review, orders to seal documents, protective orders, and other measures is an issue

that remains for the trial court on remand. (See Schnabel v. Superior Court, supra,

5 Cal.4th at p. 714.)

C. Whether Discovery Must Be Limited Because of the Physician-

Patient Privilege

John also asserts that the medical information sought by the subpoenas is

protected by the physician-patient privilege but concedes, as he must, that “[t]here

is no privilege under this article as to a communication relevant to an issue

concerning the condition of the patient in a proceeding to recover damages on

31



account of the conduct of the patient if good cause for disclosure of the

communication is shown.” (Evid. Code, § 999.) John contends that discovery

must nonetheless be denied because a good cause showing should require at a

minimum “an expert declaration regarding the [plaintiff’s] infection status; the

probable exposure period; and a description of the plaintiff’s sexual history that

establishes the defendant as a probable transmitter.”

John cites no authority for his contention that a plaintiff must essentially

eliminate other possible agents of infection before discovery may proceed. (Cf.

M.M.D. v. B.L.G., supra, 467 N.W.2d at pp. 647-648 [evidence was sufficient to

support liability despite inability of medical expert to determine whether plaintiff’s

herpes outbreak was due to a recent infection or a dormant virus].) The statutory

standard is good cause, and Bridget has amply established good cause for

disclosure of John’s medical records concerning HIV and AIDS: she has recently

been diagnosed as HIV positive; John, too, has been diagnosed as HIV positive,

but his viral infection has already progressed to full-blown AIDS; during the two

years preceding Bridget’s diagnosis, she was dating John, engaged to him, and

married to him; and the couple engaged in unprotected sex during that period.

Bridget thus has offered far more than “conjecture” or a “speculative

presumption” to justify the requested discovery. (Mendez v. Superior Court

(1988) 206 Cal.App.3d 557, 570-571.) Moreover, John has not offered any

evidence to suggest that an expert could pinpoint the time period for Bridget’s

exposure to the virus. We therefore find that the superior court did not abuse its

discretion in overruling John’s objection under the physician-patient privilege.12


12

We note also that John has already propounded discovery concerning

Bridget’s sexual history designed to uncover other possible agents of her infection.
Those requests are not before us, and we express no views as to their propriety.

32



DISPOSITION

The judgment of the Court of Appeal is reversed insofar as it affirmed the

order compelling responses to plaintiff’s special interrogatories and requests for

admission to the extent they seek information about John’s sexual history outside

the time period between February 17, 2000, and the end of July 2000, and the

matter is remanded for further proceedings consistent with the views herein.















BAXTER, J.

WE CONCUR:

GEORGE, C.J.
CHIN, J.
CORRIGAN, J.


33











CONCURRING AND DISSENTING OPINION BY KENNARD, J.

This case involves a discovery dispute that arose in the early stages of a

lawsuit that a wife, Bridget, brought against her husband, John. In her complaint,

Bridget alleged, among other things, that John negligently infected her with

human immunodeficiency virus (HIV) when they had unprotected sexual relations.

To obtain the evidence necessary to prove her allegation, Bridget sought to

discover various facts about John’s sexual contacts with others, both before and

during the marriage. John resisted the discovery, arguing that the information

Bridget sought was irrelevant and that the proposed discovery violated his right of

privacy under the California Constitution.

The majority concludes that the tort of negligent transmission of HIV will

lie when “the actor knows or has reason to know he or she is HIV positive.” (Maj.

opn., ante, at p. 16.) In their dissenting opinions Justices Werdegar and Moreno

would limit liability to those who engage in sexual relations with actual

knowledge of their HIV infection. (Dis. opn. of Werdegar, J., post, at p. 1; dis.

opn. of Moreno, J., post, at p. 1.) Unlike the majority and the dissenters, I see no

need to decide the level of knowledge necessary to trigger the tort duty.

I would simply apply normal discovery principles, under which Bridget is

entitled to discover any unprivileged information that might reasonably assist her

in evaluating her case, preparing it for trial, or facilitating a settlement. Applying

that standard, the Court of Appeal properly permitted Bridget to discover

information about John’s sexual contacts (although not the identities of John’s

1



sexual partners) both before and during their marriage. Allowing this discovery

does not violate John’s constitutional privacy right, not only because he and

Bridget are married, but also because John has put his own sexual conduct at issue

by alleging that it was Bridget who infected him with HIV. Because Bridget

would be entitled to discover this information under either the majority’s “reason

to know” standard of liability or Justice Moreno’s “actual knowledge” standard, I

take no position here on which of these two knowledge standards is appropriate

for the tort of negligent transmission of HIV. Under either standard the scope of

discovery is the same, because evidence that John should have known that he was

HIV positive is not only relevant to questions of negligence but also is

circumstantial evidence that John actually knew he was HIV positive. Finally, I

question the soundness of the majority’s newly fashioned rule that all discovery

implicating the constitutional right of sexual privacy must be supported by a

showing of “practical necessity” for the information sought.

Insofar as the majority decision affirms the judgment of the Court of

Appeal, I concur. I dissent, however, from the majority’s imposition of temporal

limits on the discovery of certain information that Bridget has sought.

I.

Bridget and John began dating in 1998. John represented himself as a

healthy, heterosexual man with old-fashioned values, and the couple became

engaged on New Year’s Eve 1999. In May 2000, the couple began living together

until Bridget could find separate housing. That month or the next, Bridget

received a telephone call, purportedly from the office of John’s physician, saying

that John had tested negative for HIV.

When the couple first became intimate they used condoms, but eventually

John persuaded Bridget to switch to birth control pills. They were married in late

July 2000, and ceased having sexual relations after their honeymoon. An HIV test

2



of John done in connection with a life insurance application on August 17, 2000,

was negative.

In September 2000, Bridget consulted John’s physician about her

exhaustion and high fevers. Testing revealed that she was HIV positive. When

John also tested positive for HIV, the physician informed Bridget that she had

brought “HIV into the marriage.” John repeated that allegation a year later,

shortly before he was diagnosed with acquired immune deficiency syndrome

(AIDS). In November 2001, Bridget was told that the likelihood she had infected

John was .03%. The next month, John for the first time revealed to Bridget that

before their marriage he had had sexual relations with men; Bridget later learned

that John continued to do so after their marriage.

In April 2002, Bridget sued John. Her complaint alleged facts she contends

support causes of action for negligent as well as intentional infliction of emotional

distress in that John knew or “had a reasonable belief” he had HIV before they

engaged in unprotected sex, but nevertheless he insisted that she had infected him.

She also alleged that John fraudulently misrepresented himself as being free of

communicable sexual diseases and that she engaged in unprotected sexual

relations with him in reliance on that misrepresentation. Finally, she alleged that

John’s knowledge of his ongoing sexual conduct with male partners gave him a

duty to warn her that unprotected sexual relations between them could expose her

to sexually transmitted diseases.

Two months later, John answered the complaint; after generally denying its

allegations, he specifically asserted that “[i]f either party transmitted the HIV virus

to the other,” it was Bridget who had infected him. He alleged as an affirmative

defense that Bridget had assumed the risk of infection by engaging in unprotected

sex with him before their marriage. Finally, he alleged that any claim against him

for personal injury resulting from HIV infection was barred by the one-year statute

3



of limitation. (Code Civ. Proc., former § 340, subd. (3) [“for injury . . . by the

wrongful act or neglect of another . . . .”], amended by Stats. 1905, ch. 258, § 2,

p. 232.)

At his deposition in January 2003, John refused to answer 124 questions

about his sexual history and practices, maintaining that the information sought

invaded his right to privacy under the California Constitution. In John’s briefing

to the trial court, he argued that disclosing his sexual history was not “directly

relevant to the issue of his knowledge” of his HIV status, asserting that only his

knowledge of his health status at the time he had unprotected sex with Bridget was

directly relevant. John renewed his privacy objections when Bridget later

propounded certain interrogatories and requests for admissions pertaining to his

sexual history. The parties’ discovery dispute was heard by a referee, who

rejected John’s claims that his constitutional right of privacy barred Bridget from

discovering certain information about his sexual conduct, his sexual history, and

his medical records relating to sexually transmitted diseases. The referee’s report

was confirmed by the trial judge, who ordered the requested discovery. John

sought a writ of mandate in the Court of Appeal, arguing that the discovery

ordered would infringe his statutory and constitutional rights to privacy.

The Court of Appeal struck all of the special interrogatories that sought the

names, addresses, and telephone numbers of men with whom John had had sexual

relations. Because Bridget did not seek review in this court of that part of the

Court of Appeal’s decision, the propriety of that stricken discovery is not before

us. The discovery at issue here includes only those special interrogatories,

requests for admission, and medical record subpoenas ordered by the trial court,

but not those that pertain to identifying John’s sexual partners and were stricken

by the Court of Appeal. (Maj. opn., ante, at pp. 6-8.)

4



II.

To determine the propriety of the discovery Bridget has sought, this court

need not resolve whether, as the majority concludes, Bridget can recover in tort if

John had reason to know that he was HIV positive, or only if he actually knew he

was HIV positive when they had unprotected sexual relations. “ ‘Under the

discovery statutes, information is discoverable if it is unprivileged and is either

relevant to the subject matter of the action or reasonably calculated to reveal

admissible evidence.’ ” (Schnabel v. Superior Court (1993) 5 Cal.4th 704, 711;

see Code Civ. Proc., § 2017.010.) “ ‘[I]n accordance with the liberal policies

underlying the discovery procedures, doubts as to relevance should generally be

resolved in favor of permitting discovery [citation].’ ” (Valley Bank of Nevada v.

Superior Court (1975) 15 Cal.3d 652, 656.) Evidence is relevant for discovery

purposes “if it might reasonably assist a party in evaluating its case, preparing for

trial, or facilitating a settlement.” (Glenfed Development Corp. v. Superior Court

(1997) 53 Cal.App.4th 1113, 1117.) Evidence that is relevant for purposes of

discovery need not be admissible; it will be relevant, and hence discoverable, if it

might reasonably lead to other, admissible evidence. (TBG Ins. Services Corp. v.

Superior Court (2002) 96 Cal.App.4th 443, 449.) Courts “shall limit the scope of

discovery” when they determine that “the burden, expense, or intrusiveness of that

discovery clearly outweighs the likelihood that the information sought will lead to

the discovery of admissible evidence,” and they “may make this determination

pursuant to a motion for protective order by a party or other affected person.”

(Code Civ. Proc., § 2017.020, subd. (a).)

To determine what discovery is relevant, courts look to the allegations of

the complaint. Here, Bridget alleged causes of action for intentional as well as

negligent infliction of emotional distress on the basis that John knew he was HIV

positive before he engaged in unprotected sex with her. As to the cause of action

5



for negligent infliction of emotional distress, Bridget further alleged John either

“knew or had a reasonable belief that he had HIV.” Those factual allegations as to

John’s degree of knowledge were incorporated by reference into Bridget’s causes

of action for fraudulent misrepresentation and for negligent failure to disclose his

HIV status. For each of the causes of action Bridget seeks to allege, evidence

tending to prove John’s actual knowledge of his HIV-positive status is relevant.

The definition of the elements of the tort of negligent transmission does not affect

the scope of discovery, because any evidence tending to show that John should

have known that he was HIV positive is also circumstantial evidence that he

actually knew he was HIV positive. Because resolution of the discovery issue in

this case does not turn on the elements of the tort of negligent transmission of

HIV, a subject debated at length by both the majority and the dissent, I would not

reach the question of whether the tort requires actual knowledge or reason to know

that one is HIV positive.

Under the ordinary test of relevance applicable to discovery, the majority

improperly limits discovery in two ways. First, it bars discovery of John’s sexual

relations for the period more than six months before he tested HIV negative on

August 17, 2000. (Maj. opn., ante, at pp. 30-31.) Even assuming that Bridget will

be unable to attack the relevance of that timeframe or the accuracy of the August

2000 test, John’s conduct during that earlier period might still reveal whether he

regularly or habitually acted negligently with respect to the risks of contracting or

transmitting HIV. Second, the majority bars Bridget from discovering information

pertaining to John’s sexual conduct after he and Bridget stopped having sexual

relations. (Maj. opn., ante, at p. 31.) But John’s conduct during that period—in

particular, whether he revealed his HIV-positive status to any sexual partners—

could be highly relevant to Bridget’s claim that John intentionally concealed his

disease from her.

6



The right of privacy accorded by our state Constitution protects John’s

interest in making intimate personal decisions in the conduct of his sexual life, an

interest we have described as autonomy privacy. (Hill v. National Collegiate

Athletic Assn. (1994) 7 Cal.4th 1, 35-36; see, e.g., Vinson v. Superior Court (1987)

43 Cal.3d 833, 841 (Vinson).) The right of privacy in sexual conduct is held by

the married and the unmarried alike. (Vinson, at p. 841.)

Here, the majority’s limitations on discovery are not necessary to protect

John’s right to sexual privacy under article I, section 1, of the California

Constitution. When a party asserts an invasion of a constitutionally protected

privacy interest, courts apply a balancing test. (Hill v. National Collegiate Athletic

Assn., supra, 7 Cal.4th at p. 37.) Because “[t]he diverse and somewhat amorphous

character of the privacy right necessarily requires that privacy interests be

specifically identified and carefully compared with competing or countervailing

privacy and nonprivacy interests” (ibid.), the inquiry is made on a case-by-case

basis (see Vinson, supra, 43 Cal.3d at pp. 841-842 [using a case-specific

analysis]).

Here John, as husband, is in the anomalous position of arguing that his

personal right to sexual privacy protects him from providing otherwise relevant

discovery to his wife, Bridget. By alleging that John infected her with HIV,

Bridget may be deemed to have implicitly waived her constitutional privacy right

against discovery that is “directly relevant” and “essential to a fair resolution” of

that claim. (Vinson, supra, 43 Cal.3d at p. 842 [discussing Britt v. Superior Court

(1978) 20 Cal.3d 844, 859].) John has made a similar claim in his answer to the

complaint, asserting that Bridget infected him with HIV. In this factual context, I

conclude that, as between themselves, John and Bridget, who at all relevant times

were either planning to be married or were married, both have a vastly diminished

7



constitutional right of personal privacy with regard to disclosure to one another of

their sexual conduct with others.

The majority limits Bridget’s discovery requests, asserting that privacy

protections for sexual behavior require her to establish the “practical necessity” for

the information she seeks to discover from John. (Maj. opn., ante, at p. 28.)

Almost 40 years ago, this court applied a practical necessity standard in a decision

precluding a county government from conditioning public employment or other

benefits on a loyalty oath that imposed substantial burdens on the First

Amendment rights of speech and association granted by our federal Constitution.

(Vogel v. County of Los Angeles (1967) 68 Cal.2d 18, 21; see also Bagley v.

Washington Township Hospital Dist. (1966) 65 Cal.2d 499, 505 [practical

necessity showing must be made by employer seeking to limit political activity by

public employee].) Vogel described the government’s “heavy burden of

demonstrating the practical necessity for the limitation” that a loyalty oath

imposed on the rights of the affected citizens. (Vogel, at p. 21.) Thereafter two

Court of Appeal decisions—Fults v. Superior Court (1979) 88 Cal.App.3d 899

(Fults) and Boler v. Superior Court (1987) 201 Cal.App.3d 467 (Boler)—applied

the practical necessity test to civil discovery that allegedly intruded on sexual

privacy.

Fults

was a paternity action brought by the County of Sonoma, which

sought to recoup from the child’s father public assistance provided for the child’s

support. (Fults, supra, 88 Cal.App.3d at p. 901 & fn. 1.) When the defendant

father sought to discover the names and addresses of all men with whom the

mother had ever had sexual intercourse, the mother refused to provide that

information except as temporally relevant to the date of the child’s conception.

(Id. at pp. 902, 904.) After citing the practical necessity phraseology this court

used in Vogel, the Court of Appeal in Fults rejected a discovery order spanning a

8



two-year period centered on the likely date of conception. (Id. at p. 905.) It

concluded that the defendant had made no showing that the discovery sought was

“likely to turn up material information,” and therefore its utility did not outweigh

the mother’s right to sexual privacy. (Ibid.)

The second Court of Appeal decision, Boler, involved discovery sought in a

workplace sexual harassment suit. (Boler, supra, 201 Cal.App.3d at p. 469.) The

plaintiff employee sought to discover the identities of all women that her employer

had both “worked with and slept with.” (Id. at p. 474.) Because the relevant

information (complaints by coworkers who found the employer’s attentions

unwelcome) could be obtained by less intrusive means, the Court of Appeal

concluded that the discovery sought was not justified by practical necessity, noting

that the broad discovery impermissibly invaded the privacy rights of women

whose sexual relationships with the employer were consensual. (Id. at pp. 473-

474.)

Some three months before the Court of Appeal decided Boler, supra, 201

Cal.App.3d 467, this court in Vinson, supra, 43 Cal.3d 833, which involved a

claim of sexual harassment, addressed discovery that implicated the constitutional

right of sexual privacy. Notably absent from our analysis in Vinson is any

mention of the practical necessity test. Instead, this court concluded that the

plaintiff had waived her right to sexual privacy as to discovery that was “directly

relevant” to her claim and “essential to its fair resolution.” (Id. at p. 842.)

Referring to plaintiff’s unwaived sexual privacy rights, the opinion emphasized

that courts “must balance the right of civil litigants to discover relevant facts

against the privacy interests of persons subject to discovery.” (Id. at p. 842.) And

this court pointed out that the sexual privacy rights of plaintiffs who bring civil

actions for sexual harassment, sexual assault, or sexual battery are protected by a

statutory requirement that discovery of their sexual history may be had only on a

9



showing of good cause. (Code Civ. Proc., § 2017.220; Vinson, at pp. 843-844

[discussing predecessors to section 2017.220].) In light of this court’s decision in

Vinson, I question the majority’s assertion here that intrusions on the constitutional

right of sexual privacy may only be contenanced on a showing of practical

necessity. (Maj. opn., ante, at p. 28.)

Such a showing is unnecessary here. Both Bridget and John have already

put their own sexual conduct at issue, and they have implicitly waived some of

their rights to sexual privacy. (Vinson, supra, 43 Cal.3d at p. 842.) And their

remaining sexual privacy rights are “not necessarily absolute.” (Ibid.) Because

each alleges that the other, rather than some third party, is the source of the

infection, both must accept inquiry into their sexual conduct with partners other

than their spouse as a possible source of the infection. Accordingly, unlike the

majority (maj. opn., ante, at p. 29) and Justice Werdegar (dis. opn. of Werdegar,

J., post, at p. 2), I would not require Bridget to show a practical necessity for

discovery of John’s sexual conduct after July 2000, when the couple ceased to

have sexual relations with one another. Even under a practical necessity test, the

information Bridget seeks to discover from John is of a type that she has no ready

means of obtaining, except from John. (See, e.g., Boler, supra, 201 Cal.App.3d at

p. 474 [plaintiff had alternative means of obtaining discovery].)

Notwithstanding the diminished right to privacy of John and Bridget as

between one another, they each retain some sexual privacy interests. I would

leave the protection of those privacy interests to the discretion of the trial court,

which remains free to fashion protective orders or to adopt other measures tailored

to the specific information and documents before it. Moreover, I stress that my

conclusion that John and Bridget have a diminished privacy interest as to one

another in the context of this litigation does not affect the privacy interests of

10



other persons. Bridget’s discovery of the identities of John’s previous sexual

partners was precluded by the Court of Appeal and is not an issue before us.

III.

For the reasons given above, I would affirm the judgment of the Court of

Appeal.

KENNARD,

J.

11












DISSENTING OPINION BY WERDEGAR, J.

I respectfully dissent. Notwithstanding my sympathy with the law’s

preference for prudence in sexual matters, as in general (Civ. Code, § 1714), I am

unwilling in the context of this atypical case to join the majority in creating the

prospect that an individual may be drawn into intrusive litigation, whether as a

party, witness, or respondent to discovery requests, whenever a former partner, or

that partner’s subsequent partner, contracts a sexually transmitted disease.

I do not question that one who negligently transmits HIV to another may be

held liable in tort. On this point, I agree with all of my colleagues. I part

company with the majority, however, in its creating the prospect of tort liability

for future defendants who are alleged not actually to have known, but merely to

have possessed “constructive knowledge,” they were infected. The majority’s

vague and inconclusive treatment of the concept of constructive knowledge in my

view demonstrates that its enterprise in this respect is not only premature—given

this is a case in which actual knowledge is alleged (see maj. opn., ante, at p. 4)—

but also insufficiently grounded in California law and ill considered as a matter of

public policy.

As Justice Moreno’s dissenting opinion ably demonstrates, a Californian’s

medical privacy is protected by a complex of statutes, case law, and ethical

principles. Our Legislature has given particular and heightened protection to the

confidentiality of an individual’s HIV status. (See dis. opn. of Moreno, J., post, at

1



pp. 7-11.) In this case, however, most of these protections are not in issue because

the parties already have disclosed that they are HIV positive and each is suing the

other for transmitting the virus. Moreover, as the majority emphasizes, the alleged

relationship between the parties was not limited to sexual encounters but, rather,

was a marriage of spouses who contemplated sexual exclusivity. (Maj. opn., ante,

at pp. 4, 9, 18.) John allegedly not only knew he was HIV positive (id. at p. 4), but

represented himself as disease free and repeatedly insisted that the parties forgo

the use of condoms (id. at pp. 9, 18). Bridget allegedly would not have engaged in

unprotected sex had she known John had been sexually active with other people

prior to and during their marriage. (Id. at p. 4.) I agree with the majority that in

these circumstances and on such egregious facts Bridget potentially may state a

cause of action against John for negligently transmitting HIV to her. Upon

demonstrating “practical necessity,” moreover, she may obtain narrowly drawn

discovery circumscribed by appropriate confidentiality measures. (See id. at

pp. 28-31.)

I disagree, however, that Bridget may prevail on any such cause of action

merely by showing that John had constructive knowledge he was HIV positive.1

As Justice Moreno correctly observes, no California statute or judicial decision

establishes that mere constructive knowledge may support liability for negligent

HIV transmission. (See dis. opn. of Moreno, J., post, at p. 3.) Moreover, as

1

For clarity, I emphasize that, contrary to the majority’s assertion, I have not

proposed any categorical rule that a defendant spouse who behaves as defendant
here is alleged to have behaved and who has “reason to know” he is infected with
HIV “has no duty even to warn the other spouse.” (Maj. opn., ante, at p. 24, fn. 9,
citing this dissent.) Rather, I agree such a person may have a duty to warn a
spouse if, in fact, he knows he is infected. But I remain unwilling on the present
record, which does not permit full consideration of the public policy ramifications,
to impose new warning duties on persons who do not know they are infected.

2



counsel pointed out at oral argument, the record contains neither factual findings

nor briefing upon the complex issues of AIDS policy this case implicates. Perhaps

partly for this reason, the majority does not persuasively address these issues;

I share in particular Justice Moreno’s concern that the majority fails adequately to

consider the Legislature’s response to them. As he points out, the majority, for

example, does not attempt to reconcile the discovery its opinion authorizes with

Health and Safety Code section 120975, except to state John himself has waived

that statute’s protection by placing his HIV status in issue. (See dis. opn. of

Moreno, J., post, at p. 9, citing maj. opn., ante, at p. 25.)2

I disagree, moreover, with the majority’s assertion that allowing Bridget to

discover John’s sexual history during the six-month period preceding his negative

HIV test may yield evidence relevant to show John knew or “had reason to know”

he was infected. (See maj. opn., ante, at p. 19.) As Bridget’s counsel

acknowledged in oral argument, discovery that John had unprotected sex with

other people during that time would reveal nothing pertinent; only if Bridget could

discover the names and HIV status of John’s former sexual partners—information

protected by statute—would she learn anything arguably relevant to her causes of

action, even assuming application of a “reason to know” standard. Accordingly,

I agree with Justice Moreno that Bridget is entitled only to discovery directed at

2

Health and Safety Code section 120975 provides in its entirety: “To protect

the privacy of individuals who are the subject of blood testing for antibodies to
human immunodeficiency virus (HIV), the following shall apply: [¶] Except as
provided in Section 1603.1 [disclosure to blood banks by health officials], 1603.3
[notification of blood donors], or 121022 [assuring access to anonymous testing
while directing health care providers to report HIV cases consistently with federal
funding requirements], no person shall be compelled in any state, county, city, or
other local civil, criminal, administrative, legislative, or other proceedings to
identify or provide identifying characteristics that would identify any individual
who is the subject of a blood test to detect antibodies to HIV.”

3



whether and when John had actual knowledge he was HIV positive and not to

discovery of John’s sexual history.

The majority as well as Justice Moreno in dissent cite numerous policy

considerations they believe support their different conclusions. This divergence of

views―all conjecture as far as this court knows―illustrates that complex public

health, privacy, and other policy issues are involved in determining the scope of a

tort for negligent transmission of HIV or AIDS. Given the complexity of such

issues, this court is ill equipped and ill advised to venture into an area the

Legislature already has extensively addressed.

WERDEGAR, J.

4











DISSENTING OPINION BY MORENO, J.



In this case of first impression, the majority holds that a wife who sues her

husband claiming that he negligently infected her with the human

immunodeficiency virus (HIV) is not limited to a theory that he did so knowing he

was HIV positive but that liability also extends “to those situations where the

actor, under the totality of circumstances, has reason to know of the infection.”

(Maj. opn., ante, at p. 15.) According to the majority, reason to know exists

“when there is sufficient information to cause a reasonably intelligent actor to

infer he or she is infected with the virus or that infection is so highly probable that

his or her conduct would be predicated on that assumption.” (Id., at p. 17.) Based

on these conclusions, the majority authorizes broad discovery into defendant’s

sexual history.

I dissent. While I agree that a defendant who knows that he or she is

infected with HIV and conceals that fact from a partner with whom the defendant

has unprotected sex may be held liable for negligently transmitting the virus, I do

not agree, for the reasons set forth below, that such liability may be predicated on

a later finding by a trier of fact that the defendant had reason to know that he or

she was infected with HIV. In this case, therefore, I would hold that plaintiff is

entitled to discovery directed at whether and when defendant had actual

knowledge he was HIV positive, but not to discovery of defendant’s sexual

history.

1



Whether particular information is discoverable necessarily depends on

whether there is a cause of action as to which that discovery is either relevant or

“ ‘reasonably calculated to reveal admissible evidence.’ ” (Schabel v. Superior

Court (1993) 5 Cal.4th 704, 711.) The majority acknowledges that “[t]his court

has not yet had occasion to consider the tort of negligent transmission of a

sexually transmitted disease” but concludes “the tort is far from novel,” citing two

California Court of Appeal decisions and a number of decisions from our sister

jurisdictions. (Maj. opn., ante, at p. 11.) The majority thus implies that the

creation of a cause of action for negligent transmission of HIV based on a

constructive knowledge standard is simply a logical extension of existing

precedent. Not so.

Neither of the Court of Appeal decisions cited by the majority supports its

expansion of the law. In Kathleen K. v. Robert B. (1984) 150 Cal.App.3d 992, the

plaintiff alleged she had contracted genital herpes from the defendant. Judgment

was rendered in the defendant’s favor. On review, the Court of Appeal noted that

the plaintiff’s negligence claim included a constructive knowledge allegation that,

because the appeal was from a judgment on the pleadings, the court “accepted as

true.” (Id. at p. 944.) The court rejected claims by the defendant that the

plaintiff’s complaint was barred by either the right of privacy or the Anti-Heart

Balm statute (Civ. Code § 43.5, subd. (c)), and reversed the judgment. (Kathleen

K., supra, 150 Cal.App.3d at pp. 996-998.) Because the court had no occasion to

decide whether negligent transmission of a sexually transmitted disease must be

based on an actual knowledge standard only or if it can also be based on

constructive knowledge, Kathleen K. is not authority for the proposition that a

constructive knowledge standard will suffice. (Nolan v. City of Anaheim (2004)

33 Cal.4th 335,343 [“A decision, of course, does not stand for a proposition not

considered by the court”].)

2



Doe v. Roe (1990) 218 Cal.App.3d 1538, lends even less support for the

majority’s conclusion because in that case, which also involved transmission of

herpes, it was undisputed that the defendant had actual knowledge he was infected

was herpes, and had had several prior outbreaks, but “believed that he could not

transmit it to [the plaintiff] as long as he was symptom free.” (Id. at p. 1541.) In

affirming judgment for the plaintiff, the court emphasized that the “defendant

admittedly had actual knowledge that herpes was sexually transmissible . . . .

Having discovered that he had a venereal disease, defendant did nothing.” (Id. at

p. 1546.)

In the absence of support in California law for its conclusion that a

constructive knowledge standard will support the negligent transmission of HIV,

the majority relies on a spate of decisions from other jurisdictions. (Meany v.

Meany (La. 1994) 639 So.2d 229 [herpes]; Berner v. Caldwell (Ala. 1989) 543

So.2d 686 [same]; Hamblem v. Davidson (Tenn.Ct.App. 2000) 50 S.W.3d 433

[same]; Deuschle v. Jobe (Mo.Ct.App. 2000) 30 S.W.2d 215 [same]; M.M.D. v.

B.L.G (Minn.Ct.App. 1991) 467 N.W.2d 645 [same]; McPherson v. McPherson

(Mass. 1998) 712 A.2d 1043 [human papilloma virus (HPV)]; Mussivand v. David

(Ohio 1989) 544 N.E.2d 265 [transmission of unspecified sexual disease].) While

these decisions do recognize a claim for negligent transmission of a sexually

transmitted disease based on actual or constructive knowledge, only one of them,

Doe v. Johnson (W.D.Mich. 1993) 817 F.Supp. 1382), involves the transmission

of HIV; the others, as noted above, involve herpes, HPV, or an unspecified

disease.1


1 In

Doe v. Johnson, plaintiff Jane Doe alleged that defendant Earvin “Magic”

Johnson wrongfully transmitted HIV to her through consensual sexual conduct.
Included in her action were allegations that Johnson knew or should have known


(footnote continued on next page)

3



As I shall explain, the distinction between HIV and other sexually

transmitted diseases is crucial when discussing the wisdom of creating a cause of

action for negligent transmission based on constructive knowledge. Contrary to

the majority’s analysis, creation of such a tort for HIV is not a simple extension of

existing California law, nor has any other state created such a cause of action.2

It must be clearly understood, therefore, that in creating this cause of action the

majority ventures into largely uncharted waters.

This expansion of the law cannot be justified by the majority’s application

of the Rowland factors (Rowland v. Christian (1969) 69 Cal.2d 108) because its

analysis proceeds from an a priori assumption that constructive knowledge is a

viable theory upon which to base a claim for negligent transmission of HIV.

Rather, in deciding whether to create this cause of action, the analysis must begin

with the relevant policy considerations. (Borer v. American Airlines, Inc. (1977)

19 Cal.3d 441, 446-447 [“ ‘In delineating the extent of a tortfeasor’s responsibility


(footnote continued from previous page)

he was infected with HIV. The district court found that constructive knowledge
could be based on the presence of symptoms associated with HIV or actual
knowledge that a prior partner was HIV positive. (Doe v. Johnson, supra, 817
F.Supp. at p. 1392.) Although I do not agree with Doe that a constructive
knowledge standard is appropriate in a claim involving the negligent transmission
of HIV, Doe at least applies a more rigorous standard of what constitutes
constructive knowledge than the majority.

2 In

Plaza v. Estate of Wisser (App. Div. 1995) 626 N.Y.S.2d 446, the

appellate court, without substantive analysis, held that allegations in a complaint
that the defendant knew or had reason to know he was infected with HIV prior to
his having been diagnosed as HIV positive, including an allegation that he was
aware a prior sexual partner was HIV positive, were sufficient to withstand a
motion to dismiss fraud and negligence claims. (Id. at pp. 450-451.) These
allegations were made in a procedural context that required the reviewing court to
accept them as true. (Id. at p. 452.)

4



for damages under the general rule of tort liability (Civ. Code, § 1714), the courts

must locate the line between liability and nonliability at some point, a decision

which is essentially political’ ”]; Dillon v. Legg (1968) 68 Cal.2d 728, 734 [“ ‘duty

is not sacrosanct in itself, but only an expression of the sum total of those

considerations of policy which lead the law to say that a particular plaintiff is

entitled to protection’ ”].)

Accordingly, the question before this court is whether creation of a cause of

action for negligent transmission of HIV — and not some other sexually

transmitted disease — based on a constructive knowledge standard will serve the

relevant policy considerations associated with the fight against the AIDS

epidemic. I believe the answer is no.

To begin with, the majority fails even to recognize the relevant policy

considerations associated with the AIDS epidemic because the majority assumes

that AIDS is the same as other sexually transmitted diseases and the same analytic

framework can be applied to the negligent transmission of HIV as is applied to

other sexually transmitted diseases (See maj. opn., ante, at p. 19.) This is

inaccurate. Unlike other sexually transmitted diseases HIV infection has been,

and continues to be, life-threatening “killing over half a million Americans as of

the end of 2003.” (Maj. opn., ante, at p. 22.) There are also significant medical

differences between these other sexually transmitted diseases and HIV infection.

HIV infection can remain latent for years before the appearance of any kind of

symptom, unlike other sexually transmitted diseases and, unlike symptoms

associated with other sexually transmitted diseases, the symptoms of AIDS-related

disease, because they are generally nonspecific to AIDS, may not necessarily alert

a person to the fact that he or she is HIV positive. (U.S. Dept. of Health & Human

Services, Centers for Disease Control and Prevention (CDC), HIV/AIDS

Prevention in the United States FAQ: How Can I Tell if I’m Infected with HIV?,

5



at <http://www.cdc.gov/hiv/pubs/faq/faq5.htm> [as of July 3, 2006] [“The only

way to know if you are infected is to be tested for HIV infection. You cannot rely

on symptoms to know whether or not you are infected. Many people who are

infected with HIV do not have any symptoms at all for many years . . . . The

symptoms of AIDS are similar to the symptoms of many other illnesses.”].)

Finally, AIDS is unique in the opprobrium with which those infected with HIV are

viewed in part because one of the populations most at risk has been traditionally

stigmatized on the basis of sexual orientation. (Urbaniak v. Newton (1991) 226

Cal.App.3d 1128, 1140 [HIV-positive status “is ordinarily associated either with

sexual preference or intravenous drug uses. It ought not to be, but quite

commonly is, viewed with mistrust or opprobrium”]; Herbert v. Regents of

University of California (1994) 26 Cal.App.4th 782, 788 [“ ‘Public speculation

about the potential for transmission of [the AIDS] virus, the degree of morbidity,

and other factors, has led to expression of public fears or anxieties approaching, in

some circumstances, panic or hysteria’ ”]; see CDC, HIV/AIDS Prevention in the

United States, Basic Prevention, Fact Sheet, A Glance at the HIV/AIDS Epidemic

at <http://www.cdc.gov/hiv/resources/factsheets/At-A-Glance.htm> (as of July 3,

2006) [“In 2004, the largest estimated proportion of HIV/AIDS diagnoses were for

men who have sex with men (MSM), followed by adults and adolescents infected

through heterosexual contact.”].)

The convergence of these three factors: the potential deadliness of HIV

infection, the possibility that a person may be unknowingly infected with HIV for

years and the opprobrium to which those who are infected have been subjected,

distinguishes HIV/AIDS from all other sexually transmitted diseases. Thus the

battle to contain the transmission of HIV raises complex questions of public and

public health policy not present with respect to other sexually transmitted diseases.

Some of these questions are: What is the best way to promote testing for HIV

6



given that testing is the only way to definitively determine HIV status? How can

transmission of the virus be contained in light of the long period of latency and the

absence of specific recognizable symptoms? How should prevention measures be

balanced against the right of privacy in sexual matters? How can a policy

promoting testing and preventing transmission be crafted so as to prevent

discrimination against those infected with HIV and stigmatization of populations

vulnerable to infection?

These are the questions this court should be consider before rushing into the

complex terrain that constitutes AIDS policy. The majority have failed to

adequately and persuasively address these difficult issues. Equally glaring is the

majority’s failure to adequately consider the Legislature’s response to these

questions because, for the last two decades, the Legislature has been the body

responsible for setting AIDS policy in California through its enactment of a

comprehensive system of AIDS-related statutes. (See Cal. Dept. of Health

Services, Off. of AIDS, A Brief Guide to Cal.’s HIV/AIDS Laws, 2004 (Feb.

2005).)3

3

The majority insists that HIV is no different from other sexually transmitted

diseases like syphilis and HPV because they “are also life-threatening,” and a
social stigma may also attach to them. (Maj. opn., ante, at p. 22.) The majority
asserts that “the dissent fails at bottom to explain why the distinctions between
HIV and other sexually transmitted diseases warrant wholesale rejection of
ordinary tort principles in this case.” (Maj. opn., ante, at p. 23.) My point, of
course, is not that tort principles are inapplicable to transmission of HIV but that
the applicability of such principles must be examined in light of the special policy
issues raised by HIV and the Legislature’s response to those issues to ensure that
the courts and the Legislature are on the same page with respect to combating this
still potentially lethal disease. Since the majority denies that HIV is any different
than other sexually transmitted diseases, it fails to undertake this examination.
The majority’s comparison of HIV to other sexually transmitted diseases is also
specious. While other sexually transmitted diseases may have serious
consequences, if untreated, and some degree of social stigma may attach to them,


(footnote continued on next page)

7



The Legislature’s response to those policy questions I posed earlier has

been to enact laws that encourage voluntary testing and voluntary disclosure of

HIV status, promote initiatives to educate sexually active Californians about how

to protect themselves against HIV infection, and guard against any tendency to

conflate transmission of the virus with sexual orientation. Crucial to these policy

goals is the requirement that HIV testing and test results be absolutely

confidential. The guarantee of confidentiality is so important to the Legislature’s

efforts that unauthorized disclosure of another person’s HIV test results may be

punishable by fines and even imprisonment. (Health & Saf. Code, § 120980.)4



(footnote continued from previous page)

there is simply no comparison between those diseases and HIV in terms of the life-
threatening potential of HIV and the stigma that attaches to it because of its
association with drug use and homosexuality. (See, e.g., Fullbright, Disease
Denial Devastating For African Americans
, S.F. Chronicle (June 5, 2005), pp. 1, 8
[“The decades-long lag in identifying AIDS as a black health issue results from
both the disease’s initial identification as a white epidemic and its association with
homosexuality, which carries a heavy stigma in the black community”].) The
singularity of HIV is also evident in the Legislature’s response to the AIDS
epidemic in comparison to its treatment of other sexually transmitted diseases.
For example, while the Legislature created a Office of AIDS within the California
Department of Health (Health & Saf. Code, § 100117) it has not created a
comparable office for any of the sexually transmitted diseases mentioned by the
majority nor has it enacted anything like the large body of AIDS-specific statutes
with regard to these other sexually transmitted diseases. Given all this, it is simply
not plausible to assert that AIDS is no different from other sexually transmitted
diseases.

4

The recent enactment of legislation that requires California to use a name-

based system for reporting cases of HIV/AIDS to public health agencies in order
to protect federal funding does not impact statutes that bar the unauthorized
disclosure of an individual’s HIV status. (Keller, Schwarzenegger Signs Bill to
Track HIV Cases by Name
, L.A. Times (Apr. 18, 2006) p. B3.)

8



The Legislature’s concern for confidentiality specifically extends to

prohibiting unauthorized disclosure of an individual’s HIV test results in civil

discovery proceedings. Health and Safety Code section 120975 provides that to

“protect the privacy of individuals who are the subject of blood testing for

antibodies to human immunodeficiency virus . . . : [¶] . . . no person shall be

compelled in any state, county, city or other local civil, criminal, administrative,

legislative, or other proceedings to identify or provide identifying characteristics

that would identify any individual who is the subject” of an HIV test. (Health &

Saf. Code, § 120975; italics added.)

Irwin Memorial Blood Centers v. Superior Court (1991) 229 Cal.App.3d

151, examined this prohibition in the context of civil discovery and concluded that

the prohibition is absolute. In Irwin, the plaintiffs brought an action against a

blood bank alleging that they had acquired AIDS from infected blood. They

sought to take the depositions of blood donors implicated as potential sources of

their infection. Applying the predecessor statute to Health and Safety Code

section 120975, the Court of Appeal quashed an order granting the request even

though the depositions were to be taken “behind a screen.” (Irwin, at p. 157.)

“[T]he production of the donor for deposition is in itself an identification within

the meaning of the statute. . . . Until the time that the donor appears for

deposition, the donor is a number unconnected to a person. Once the person is

required to step forth, the connection between the number and the person is made.

The donor has been identified. The extent to which that identification is made

known to third parties will depend upon the care taken at the deposition but the

identification in a civil proceeding has been made. This the statute prohibits.”

(Ibid.)

The majority does not attempt to reconcile the discovery that they authorize

with Health and Safety Code section 120975 except to assert that defendant has

9



waived its protection by placing his HIV status at issue. (Maj. opn., ante, at

p. 25.) Even if this is true of defendant’s own HIV status, it is not true of the

identity or HIV status of any third party with whom he may have had a sexual

relationship. While the discovery authorized by the majority regarding

defendant’s sexual history does not include identifying information for his prior

sexual partners or their HIV status, but only the dates and number of his sexual

encounters with other men, nothing in the majority opinion prevents plaintiff from

renewing her request for such identifying information. To the contrary, the

majority opinion encourages her to seek this information because it deems the

discovery of defendant’s sexual history relevant to whether defendant had reason

to know he was infected with HIV. Moreover, at argument, plaintiff’s counsel

acknowledged that he would learn nothing useful if all that is disclosed to plaintiff

is the limited information of the dates and number of defendant’s past sexual

encounters with other men. Now that plaintiff has the benefit of the majority

opinion, she will inevitably renew her request for the identity of defendant’s

sexual partners to ascertain their HIV status and the particulars of their encounters

with defendant.5

5

The majority’s response that it need not consider the propriety of discovery

requests not before it is part and parcel of its failure to examine the ramifications
of its decision on legislatively enacted HIV policy, specifically, in this case, the
effect of its newly minted tort on the proscription against the discovery of HIV test
results in Health and Safety Code section 120975. This failure is particularly
conspicuous in this case where, in argument, plaintiff’s counsel essentially
informed this court that he will be seeking identifying information about
defendant’s sexual partners. The majority also asserts that my interpretation of the
HIV confidentiality statutes would “eliminate entirely the possibility of tort
liability for the knowing or negligent transmission of HIV.” (Maj. opn., ante, at
p. 24.) Certainly, one reading of these statutes may be that they would bar a claim
for transmission of HIV insofar as that claim required a defendant to disclose his
or her HIV status or the status of his or her sexual partners. This is precisely the


(footnote continued on next page)

10



Thus, by creating this new tort, the majority puts this court into the position

of encouraging plaintiff to seek disclosure that is not only statutorily prohibited

(Health & Saf. Code, § 120975; Irwin Memorial Blood Centers v. Superior Court,

supra, 229 Cal.App.3d at p. 157), and subject to civil and criminal penalties

(Health & Saf. Code, § 120980) but quite likely unconstitutional as well. (Vinson

v. Superior Court (1987) 43 Cal.3d 833, 841 [“California’s privacy protection . . .

embraces sexual relations”].) Moreover, once people realize that their HIV status

may be exposed during the course of discovery in cases like this, the incentive for

voluntary testing provided by the Legislature’s extensive guarantees of

confidentiality will be eroded.

The majority seeks to justify imposition of a constructive knowledge

standard by asserting that “limiting tort defendants to those who have actual

knowledge they are infected with HIV would have perverse effects on the spread

of the virus” because it would provide an incentive for some individuals to avoid

diagnosis and treatment in order to avoid knowing they are infected. (Maj. opn.,

ante, at p. 14.) I find it difficult to believe that avoidance of theoretical future civil

liability would play any part in the decision of most people whether or not to get

tested to determine if they are infected with a potentially life-threatening virus. I

would also point out that this is the first case to reach our appellate courts in which

a defendant is alleged to have negligently transmitted HIV. I submit, therefore,

that the negligent transmission of HIV by irresponsible individuals is not such a



(footnote continued from previous page)

kind of question with which the majority might have been expected to grapple
before rushing to create a novel cause of action for transmission of HIV based on a
constructive knowledge standard.

11



widespread phenomenon that it requires us to create a new tort based on a

knowledge standard the scientific viability of which has not been demonstrated

and which raises serious issues about statutorily protected confidentiality

guarantees and the state constitutional guarantee of privacy. Finally, to the extent

that future civil liability is a concern, the majority opinion may have its own

“perverse effects on the spread of the virus” by deterring voluntary disclosure of

HIV infection to avoid such liability. If a person learns through testing that he or

she is HIV positive, he or she would have no incentive to disclose the results of his

or her status to his or her former sexual partners so that they might be tested,

because under the majority’s holding, to do so would invite them to sue him or her

on the theory that he or she should have known he or she was infected even before

he or she obtained the test results.

The majority finds “remarkable” what the majority characterizes as “our

dissenting colleagues’ proposed rule that even when substantial evidence indicates

an HIV-positive individual has reason to know of his or her infection, that

individual owes no duty of care as a matter of law to any sexual partner, and that

such a duty could arise only when the individual acquires actual knowledge of the

infection – although neither [dissent] ever defines how actual knowledge may be

established . . . .” (Maj. opn., ante, at p. 24, fn. 9.) The majority then, after

repeatedly stating that it need not decide what facts would satisfy its reason to

know standard, posits an hypothetical example that apparently would fulfill that

standard, to wit, “an intravenous drug user who knowingly shares needles daily

with a circle of HIV-positive individuals and has ‘symptoms associated with

HIV.’ ” (Ibid.)

My conclusion that constructive knowledge should not be the standard for

negligent transmission of HIV is guided by my assessment of the policy issues

raised by the AIDS epidemic and the legislative response to those issues. It is the

12



majority’s disregard for these policy considerations and the Legislature’s policy

judgments in its rush to create this new tort, and not my analysis, that is

“remarkable.” In my view, the majority’s ill-considered decision “intrudes into

the Legislature’s domain and indulges its own notions about what constitutes good

public policy.” (People v. Hofsheier (2006) 37 Cal.4th 1185, 1209 (dis. opn. of

Baxter, J.).) As for how actual knowledge may be established, as I have noted,

according to the CDC, at this point in time, the only way an individual can

definitively know whether he or she is infected is through testing. Whether there

are or may be other diagnostic tools by which to determine a person’s HIV status

is not before us, in part because the majority’s decision, unlike the Legislature’s

policy judgments, is not based on any of the underlying science that bears upon

HIV infection or transmission.

As to the majority’s hypothetical example — which indulges the rhetorical

trick of setting forth an extreme scenario to justify a dubious conclusion — I

would observe, first, that the example is incomplete because the majority neither

explains how the hypothetical drug user would know that his fellow users are HIV

positive nor describes his symptoms and their specific association with HIV as

opposed to other illness. Moreover, after 25 years of widely available public

information regarding the risk factors for HIV and the manner in which HIV is

transmitted, one would think the potential sexual partner of an intravenous drug

user bearing needle marks and showing signs of any kind of illness would, if not

run for the nearest exit, insist on precautions against possible transmission of HIV.

Second, the majority’s hypothetical example conflates reason to know that

one is at higher risk of infection with reason to know that one is HIV positive.

The drug user in the majority’s hypothetical would certainly have reason to know

he was at higher risk of infection but not necessarily that he was infected with

HIV. As I understand the majority, a person who is in possession of knowledge

13



that he or she is at higher risk of HIV infection would not be liable for the

negligent transmission of HIV based on a theory he or she had reason to know he

or she was HIV positive. If this is not the case, then the majority should be clear

about what type of liability it is creating with this new tort.

The majority’s rejection of an actual knowledge standard as a predicate for

imposing liability for transmitting HIV also flies in the face of the Legislature’s

adoption of an actual knowledge standard in statutes that penalize the transmission

of the virus. Health and Safety Code section 120291 makes it a felony, punishable

by up to eight years in state prison, for a person to “expose[] another to . . . [HIV]

by engaging in unprotected sexual activity when the infected person knows at the

time of the unprotected sex that he or she is infected with HIV, has not disclosed

his or her HIV-positive status, and acts with the specific intent to infect another

person with HIV.” (Health & Saf. Code, § 120291, subd. (a), italics added.)6

Health and Safety Code section 1621.5 also makes it a felony, punishable by up to

six years in prison, “for any person to donate blood, body organs or other tissue,

semen . . . , or breast milk . . . who knows that he or she has acquired immune

deficiency syndrome, as diagnosed by a physician and surgeon, or who knows that

he or she has tested reactive to HIV.” (Health & Saf. Code, § 1621.5, subd. (a),

italics added.) Finally, Penal Code section 12022.85 imposes a three-year

sentence enhancement on any person who commits a specified sexual offense


6

Yet even a defendant accused of this offense does not lose all of his or her

privacy rights with respect to information about his or her HIV status. Health and
Safety Code section 120292 permits disclosure of such information only with a
court order and only after the court has “weigh[ed] the public interest and the need
for disclosure against any potential harm to the defendant including, but not
limited to, damage to the physician-patient relationship and to treatment services.”
(Health & Saf. Code, § 120292, subd. (a)(2).)

14



“with knowledge that he or she has acquired immune deficiency syndrome (AIDS)

or with knowledge that he or she carries antibodies of the human

immunodeficiency virus at the time of the commission of those offenses.” (Pen.

Code, § 12022.85, subd. (a), italics added.)

The Legislature’s use of an actual knowledge standard in statutes that

criminalize the transmission of HIV is significant and instructive. The Legislature

has not hesitated to impose criminal penalties based upon constructive as well as

actual knowledge when it has deemed constructive knowledge sufficient to

warrant liability. (See e.g., Pen. Code, § 245, subd. (c) [assault with a deadly

weapon or instrument, other than a firearm, upon a victim whom the perpetrator

“knows or reasonably should know . . . is a peace officer or firefighter engaged in

the performance of his or her duties”]; id., subd. (d) [same, for assault with a

firearm]; id., § 12022.9 [imposing a five-year enhancement for an injury inflicted

during the commission of a felony upon a victim whom the perpetrator “knows or

reasonably should know . . is pregnant”].) Yet, despite the Legislature’s greater

expertise dealing with the AIDS epidemic, it has not adopted a constructive

knowledge standard in statutes criminalizing the transmission of AIDS. Rather,

the Legislature has recognized, through its educational and public information

initiatives, that the responsibility for preventing the spread of HIV must rest

primarily with sexually active individuals precisely because the virus may be

unknowingly and unwittingly transmitted. Therefore, I conclude that the

Legislature’s use of an actual knowledge requirement in these penal statutes

reflects a legislative judgment that a constructive knowledge standard is not

appropriate for purposes of imposing civil liability for the transmission of HIV.

The majority asserts that the Legislature’s use of an actual knowledge

standard in these criminal statutes “in no way suggests that the Legislature

intended to depart from Civil Code section 1714 or from ordinary negligence

15



principles in a civil action for negligent transmission of HIV.” (Maj. opn., ante, at

p. 24, fn. omitted.) This assertion is consistent with the majority’s decision to

ignore the unique nature of the AIDS epidemic and minimize the implications of

legislative policy judgments with respect to the epidemic as reflected in the large

body of AIDS law. The Legislature, much more than this court, has a long history

of responding to the epidemic and doing so with an expertise this court cannot

command in service of the goal of reducing HIV infection. Plainly, if the

Legislature believed that a constructive knowledge standard was workable and

would help achieve that goal it would not have hesitated to include that standard in

the HIV penal statutes, just as it has adopted a constructive knowledge standard in

other penal statutes where it deemed the use of such a standard necessary to

protect the public safety. Thus, the Legislature’s decision not to use a constructive

knowledge standard, but to premise criminal liability for the transmission of HIV

on actual knowledge only, cannot be dismissed as irrelevant to the discussion of

civil liability which, in effect, is what the majority has done.

Finally, I am concerned that the creation of this new tort is also inconsistent

with the Legislature’s policy of guarding against the conflation of transmission of

HIV with sexual orientation in a way that stigmatizes one of the populations most

vulnerable to infection. This legislative solicitude is demonstrated, for example, in

Health and Safety Code section 120292, which governs disclosure of HIV records

in criminal investigation. In that statute, the Legislature has specifically provided

that a court order for such records “shall not be based upon the sexual orientation

of the defendant.” (Id., § 120292, subd. (a)(1).) In this same vein, the Legislature

has mandated that AIDS education in public schools include “[d]iscussion about

societal views on HIV/AIDS, including stereotypes and myths regarding persons

with HIV/AIDS. This instruction shall emphasize compassion for persons living

with HIV/AIDS.” (Ed. Code, § 51934, subd. (b)(7).) Thus, in adopting AIDS

16



policy, the Legislature has been sensitive to the need to separate the public health

issues raised the AIDS epidemic from the prejudice AIDS has generated toward

some of its victims. The majority does not similarly consider whether and what

impacts its creation of this new tort might have on the populations most vulnerable

to infection.

For these reasons, I dissent from the majority’s creation of a cause of action

for negligent transmission of HIV based on a constructive knowledge standard. I

would find that civil liability for transmission of the virus must be predicated upon

actual knowledge of infection. This result would be consistent with the

Legislature’s painstaking formulation of a comprehensive policy to combat the

AIDS epidemic.

By contrast, the majority’s result is inconsistent with legislative policy.

The majority allows a person who tests HIV positive to bring an action against all

former sexual partners and attempt to ascertain not only whether they had actual

knowledge they were HIV positive when they engaged in sexual relations but also

whether they had any “reason to know” they were HIV positive.7 This cause of

action potentially licenses invasions into the sexual privacy of all sexually active

Californians and may even invite abuse of the judicial process. One can easily

foresee a spate of “shakedown” or vengeance lawsuits brought by plaintiffs whose

motivation is not so much to discover how they contracted HIV as to force

lucrative settlements or embarrass a former sexual partner by exposing that

person’s sexual history in the guise of obtaining relevant discovery. Even without


7

The majority’s suggestion that its holding applies only to “a couple who

were engaged and subsequently married” (maj. opn., ante, at p. 18) is no real
limitation given that the duty analysis that precedes this statement makes no
distinction between married couples and everyone else.

17



this potential for abuse, the threat to the confidentiality of HIV test results and to

sexual privacy, the apparent absence of any scientific grounding for a constructive

knowledge standard, and the potential for stigmatization of individuals based on

their sexual orientation are powerful arguments against this novel theory of

liability for the negligent transmission of HIV. I understand that the majority is

guided by the commendable goal of preventing transmission of HIV and AIDS,

but creating this new tort is not the way to go about it. Instead, with this decision

the majority has opened a Pandora’s box. For these reasons, I respectfully but

emphatically dissent.

MORENO, J.

18



See next page for addresses and telephone numbers for counsel who argued in Supreme Court.

Name of Opinion John B. v. Superior Court
__________________________________________________________________________________

Unpublished Opinion

Original Appeal
Original Proceeding
Review Granted
XXX 121 Cal.App.4th 1000
Rehearing Granted

__________________________________________________________________________________

Opinion No.
S128248
Date Filed: July 3, 2006
__________________________________________________________________________________

Court:
Superior
County: Los Angeles
Judge: Lawrence W. Crispo

__________________________________________________________________________________

Attorneys for Appellant:

Garrard & Davis, Donald A. Garrard; and Eric S. Multhaup for Petitioner.





__________________________________________________________________________________

Attorneys for Respondent:

No appearance for Respondent.

Garassini & Wrinkle, Maryann P. Gallagher and Roland Wrinkle for Real Party in Interest.









Counsel who argued in Supreme Court (not intended for publication with opinion):

Eric S. Multhaup
20 Sunnyside Avenue, Suite “A”
Mill Valley, CA 94941
(415) 821-6000

Roland Wrinkle
Grassini & Wrinkle
20750 Ventura Boulevard, Suite 221
Woodland Hills, CA 91364-6235
(818) 348-1717


Opinion Information
Date:Docket Number:
Mon, 07/03/2006S128248

Parties
1B., John (Petitioner)
Represented by Eric Stephen Multhaup
Attorney at Law
20 Sunnyside Avenue, Suite A
Mill Valley, CA

2B., John (Petitioner)
Represented by Donald A. Garrard
Garrard & Davis, LLP
1448 Fifteenth Street, Suite 200
Santa Monica, CA

3Superior Court Of Los Angeles County (Respondent)
4B., Bridget (Real Party in Interest)
Represented by Roland Wrinkle
Grassini & Wrinkle
20750 Ventura Boulevard, Suite 221
Woodland Hills, CA


Disposition
Jul 3 2006Opinion: Reversed

Dockets
Oct 5 2004Petition for review filed
  Petitioner ( John B.) by counsel.
Oct 5 2004Record requested
 
Oct 6 2004Received Court of Appeal record
  two doghouses
Oct 22 2004Answer to petition for review filed
  real party Bridget B.
Nov 10 2004Petition for review granted (civil case)
  The court limited review to the following issues: (1) Under California law, may a person be held liable for failure to disclose to a sexual partner the fact that the person has a sexually transmissible disease only when the person actually knows he or she has a sexually transmissible disease (see Doe v. Roe (1990) 218 Cal.App.3d 1538) or also when the person reasonably should have known he or she has such a disease? (2) If the duty to disclose is limited to situations in which a person actually knows he or she has a sexually transmissible disease, did the discovery permitted by the Court of Appeal in the present case violate either traditional standards of discovery (e.g., relevance) or constitutionally protected rights of privacy? Votes: George, C.J., Kennard, Baxter, Werdegar, Chin, Brown, and Moreno, JJ.
Nov 15 2004Filed:
  by counsel for petnr. (John B.) letter Request for Clarification of Order.
Nov 18 2004Filed:
  by counsel for RPI (Bridget B.) Letter response to letter of November 12, 2004
Nov 23 2004Certification of interested entities or persons filed
  by counsel for (RPI)
Dec 1 2004Request for extension of time filed
  for petnr to file the opening brief on the merits, to 1-7-05.
Dec 1 2004Order filed
  On November 15, 2004, petitioner's counsel filed a request for clarification of this court's order, filed November 10, 2004, granting review and limiting the issues to be briefed and argued on review. In response to the request for clarification, the limited issues to be briefed and argued on review are reframed as follows: (1) Under California law, must one actually know one has a sexually transmissible disease before one can be liable for failing to disclose that fact to a sexual partner (see Doe v. Roe (1990) 218 Cal.App.3d 1538)? (2) If actual knowledge is not the exclusive basis for liability, what circumstances short of actual knowledge-for example, willful, conscious, or reckless disregard, or absence of due care in obtaining such knowledge-may constitute such a basis? (3) Did the discovery permitted by the Court of Appeal in the present case violate either traditional standards of discovery (e.g., relevance) or constitutionally protected rights of privacy, assuming that liability is (a) limited to actual knowledge or (b) is not limited to actual knowledge, but can be premised on such circumstances as willful, conscious, or reckless disregard, or absence of due care in obtaining such knowledge?
Dec 9 2004Extension of time granted
  to 1-7-05 for petitioner to file the opening brief on the merits.
Jan 10 2005Opening brief on the merits filed
  by petnr (40.1b)
Feb 8 2005Answer brief on the merits filed
  RPI (Bridget B.)
Feb 22 2005Request for extension of time filed
  counsel for petnr. (John B.) requests extension of time to March 21, 2005, to file the reply brief on the merits.
Mar 2 2005Extension of time granted
  to 3-21-05 for petnr to file the reply brief on the merits. No further extensions of time are contemplated.
Mar 22 2005Reply brief filed (case fully briefed)
  by petnr (40.1b)
Jan 19 2006Case ordered on calendar
  February 15, 2006, 9:00 a.m., in Sacramento
Jan 23 2006Letter sent to:
  lead counsel, requesting written stipulation whether each party will or will not stipulate to Justice Chin's participation in the case even though he will not be present at oral argument. Stipulations due on or before February 1, 2006.
Jan 26 2006Filed letter from:
  Eric S. Multhaup, counsel for petitioner John B. "... petitioner John B. will not stipulate to the participation of Justice Chin in the decision of the matter without his presence and participation at oral argument. Petitioner therefore respectfully requests that the Court proceed with one of the alternatives outlined in the letter, deferral of oral argument or assignment of a justice pro tempore."
Jan 30 2006Filed letter from:
  Roland Wrinkle, counsel for real party in interest Bridge B. "... hereby stipulate to the participation of Justice Chin in this case notwithstanding Justice Chin's absence from oral argument."
Feb 2 2006Argument rescheduled
  to be called and continued to March 2006 calendar
Feb 8 2006Case ordered on calendar
  March 7, 2006, at 9:00 a.m., in San Francisco
Feb 16 2006Filed letter from:
  Eric S. Multhaup, counsel for petitioner John B. "... petitioner John B. will not stipulate to the participation of Justice Chin in the decision of the matter without his presence and participation at [the March] oral argument. ...."
Mar 7 2006Cause called and continued
  To April 2006 calendar
Mar 8 2006Case ordered on calendar
  Tuesday, April 4, 2006, at 9:00 a.m., in Los Angeles
Mar 21 2006Request for Extended Media coverage Filed
  John Hancock of The California Channel Statewide Cable TV Network.
Mar 22 2006Request for Extended Media coverage Granted
 
Mar 24 2006Supplemental brief filed
  John B., petitioner by Eric S. Mullthaup, counsel
Apr 4 2006Cause argued and submitted
 
Jul 3 2006Opinion filed: Judgment reversed
  insofar as it affirmed the order compelling responses to plaintiff's special interrogatories and request for addmission to the extent they seek information about John's sexual history outside the time period between February 17, 2000, and the end of July 2000, and the matter is remanded for further proceedings consistent with the views herein. opinion filed by Baxter, J. -----joined by George,C.J.,Chin,Corrigan,JJ Concurring and dissenting opinion by Kennard,J. Dissenting opinion by Werdegar,J. Dissenting opinion by Moreno,J.
Aug 4 2006Remittitur issued (civil case)
 
Aug 14 2006Received:
  receipt for remittitur signed 8/9/06 by Deputy E. Amos

Briefs
Jan 10 2005Opening brief on the merits filed
 
Feb 8 2005Answer brief on the merits filed
 
Mar 22 2005Reply brief filed (case fully briefed)
 
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