A Prospective, Observational Study of Individuals Who Seroconvert While Taking Truvada® for Pre-Exposure Prophylaxis (PrEP)

This study will evaluate HIV-1 RNA and the presence or absence of resistance at baseline and following seroconversion, assess the frequency of HIV-1 screening and screening method(s) used for evaluation of seroconverters, and collect information regarding whether the seroconverter experienced signs and symptoms of acute HIV-1 infection prior to or at the time of seroconversion.