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In 2008, the Swiss National AIDS Commission issued a statement about the safety of HIV treatment in terms of reduced transmission in serodiscordant couples to reduce transmission in serodiscordant couples. This was subjected to debate until 2011 when the HIV prevention trial network 052 published the first randomized study about HIV transmission in serodiscordant couples, where no transmission was observed when the infected person was under effective antiretroviral treatment (ART). Later, the Partners of People on ART-A New Evaluation of the Risks (PARTNER) and the opposites attract studies, which first involved a large number of men who have sex with men (MSM), also showed no transmission, even in condomless receptive anal intercourse (CLAI). In this article, we first review the major studies' data showing the efficacy of ART in HIV transmission in serodiscordant couples at public health scale. Second, we discuss the implications and challenges behind the treatment as prevention strategy regarding the 90-90-90 UNAIDS targets to end the HIV epidemic.We now have strong evidence that ART reduces the risk of transmission of HIV from a positive partner to their negative partner. However, far beyond ART, combining prevention policies is crucial to avoid a new increase in the overall HIV incidence.
Mertes et al. (Fri,) studied this question.