Incident Cases of Sexually Transmitted Infections among Users of Pre-Exposure Prophylaxis for HIV Prevention in Honolulu, Hawai'i.

Emtricitabine/tenofovir disoproxil fumarate [FTC-TDF] is a daily oral medication taken by HIV-negative individuals for pre-exposure prophylaxis (PrEP) to prevent human immunodeficiency virus (HIV) infection. A higher incidence of sexually transmitted infections (STIs) among PrEP users has been reported compared to STI incidence before PrEP use. Asymptomatic incident STI rates were investigated among 78 patients presenting for PrEP in Honolulu, Hawai'i, from April 2018 to May 2019.