This study, with the objective of examining voluntary self-disclosure of HIV infection after repeated counseling, was conducted in a private setting, and designed to operate in conjunction with HIV testing. Counseling was provided at entry, and then at 3 months, 6 months, and every six months thereafter. The study was conducted among 129 HIV-positive adults; the primary risk factor was history of: males having sex with males (n = 104); injection drug use (n = 19); or heterosexual contact (n = 6). Results showed that after a mean of 2.3 years since initial HIV-positive notification, 29 percent of subjects had not disclosed the HIV infection to any present partner, and 30 percent to any past sex partner. Casual sex and lower perceived social support were significantly associated with nondisclosure. The authors conclude that even after repeated individual counseling and at least several months to inform others, about one-third of the sexually active subjects did not disclose their HIV infection to any present sex partner. Clinical and public health implications are covered.