Second Man Contracts Rare HIV Strain While Adhering to PrEP

A New York City physician has documented a case in which a male patient taking Truvada (tenofovir/emtricitabine) as pre-exposure prophylaxis contracted a rare, highly drug-resistant strain of HIV while apparently taking PrEP daily as prescribed.

This is the second such case of documented PrEP failure in a man who has sex with men (MSM), following the February report at the 2016 Conference on Retroviruses and Opportunistic Infections (CROI) in Boston of a Toronto MSM on PrEP who contracted HIV under similar circumstances.