The Latest

The Next Frontier of U=U Science

Undetectable equals untransmittable (U=U) has improved HIV prevention and tackled stigma, but there are still a few questions to answer.

By Sony Salzman

Gay Men Cannot Get HIV From Partners Who Are Virally Suppressed, New Study Proves

Results from the PARTNER2 study, presented by Alison Rodger at AIDS 2018, yielded an equivalent level of confidence for gay men as it had for heterosexual couples in the original PARTNER study several years ago.

By Ace Robinson and Kenyon Farrow

No HIV Transmissions in Couples With Positive Partner Undetectable on Treatment

HIV-positive individuals with a viral load below 200 while on antiretroviral therapy did not transmit HIV to steady sex partners during more than one year of condomless sex.

By Mark Mascolini

Treatment as Prevention Could Nearly Eliminate HIV in MSM, Danish Study Predicts

Antiretroviral treatment as prevention (TasP) in Denmark could nearly eliminate the HIV epidemic among men who have sex with men (MSM), according to predictions of a Bayesian back-calculation model.

By Mark Mascolini

Negligible Risk: Updated Results From Two Studies Continue to Show That Antiretroviral Treatment and an Undetectable Viral Load Is a Highly Effective HIV Prevention Strategy

Interim analyses from two important studies clearly demonstrated that ART and an undetectable viral load is a highly effective HIV prevention strategy for heterosexual and gay male serodiscordant couples.

By Canadian AIDS Treatment Information Exchange

HPTN 052: No Partner Infections With Viral Suppression

Final results revealed a 93% reduction in sexual HIV transmission within serodiscordant couples when the individual with HIV was taking antiretroviral therapy.

By Emily Newman for BETA

Real-World Antiretroviral Therapy as Prevention: A Top HIV Clinical Development of 2014

In a well-designed and rigorously executed clinical trial, people living with HIV who started antiretroviral therapy had a significantly lower risk of transmitting the virus to their partners compared to those assigned to wait to start HIV treatment....

By David Alain Wohl, M.D.

Recommendations for HIV Prevention With Adults and Adolescents With HIV in the United States, 2014

This updated guideline is a comprehensive compilation of new and longstanding federal recommendations about biomedical, behavioral, and structural interventions that can help reduce the risk of HIV transmission from persons with HIV by reducing their...

By Centers for Disease Control and Prevention

Forgotten Negatives: The Limits of Treatment as Prevention

There is no shortage of depressing statistics when it comes to HIV prevention in the United States: 50,000 new HIV infections annually; a 12% increase in new infections among gay and bisexual men and transgender women between 2008 and 2010; an estima...

By Jeremiah Johnson for Treatment Action Group

Insight Into HIV Transmission Risk When the Viral Load Is Undetectable and No Condom Is Used

If a major study found "zero" cases of HIV transmission among mixed-status couples, why did it also find that the risk was higher than zero?

By James Wilton for Canadian AIDS Treatment Information Exchange