Pre-exposure prophylaxis ( PrEP)—just 1 pill every day—can reduce the risk HIV infection by > 90%. A recent study shows that > 40% of chlamydia infections and 42% of gonorrhea infections also could be prevented over the next decade if 40% of homosexual and bisexual men took PrEP for HIV and were tested and treated every 6 months.
The CDC estimates that nearly 500,000 men are at “substantial risk” for HIV infection and could benefit from PrEP. But recent evidence suggests that some men may use condoms less when they are taking PrEP. According to researchers from the CDC and The Rollins School of Public Health at Emory University, PrEP prevented some STIs even with a 40% reduction in condom use.
The CDC recommends testing patients who use PrEP for bacterial STIs at least once every 6 months even if they don’t have symptoms. The study found that increasing STI testing from twice a year to 4 times a year would not dramatically affect the prevention of chlamydia or gonorrhea.
PrEP’s effectiveness in preventing HIV is well documented, the CDC says. The new study shows the “potential impact” that following the CDC’s clinical guidelines for PrEP can have on preventing bacterial STIs as well. But about one third of primary health care providers had not heard of PrEP as recently as 2015, the CDC says. To address that need, the CDC has been leading education efforts targeting providers, offering the guidelines, step-by-step PrEP checklists, and interview guides, along with a hotline to answer providers’ questions about when and how to offer PrEP.
