HIV prevention study demonstrates sustained benefit of early antiretroviral therapy

Antiretroviral therapy (ART) for HIV infection provides lasting protection against the sexual transmission of the virus from infected men and women to their HIV-uninfected sexual partners, investigators from the HIV Prevention Trials Network (HPTN) reported today at the 8th International AIDS Society (IAS) Conference on HIV Pathogenesis, Treatment and Prevention in Vancouver, Canada. The study, known as HPTN 052, began in 2005 and enrolled 1,763 HIV sero-discordant couples