Sexually transmitted infections and pre-exposure prophylaxis: challenges and opportunities among men who have sex with men in the US Pre-Exposure Prophylaxis (PrEP) has shown high efficacy in preventing human i
Intravenous drug users, female prostitutes, and men attending sexually transmitted disease clinics were included as participants. All specimens were collected and tested anonymously. Saliva was gathered with the Omni-Sal collection device and analyzed for the presence of HIV antibodies using the ...