From Slate.com…
Earlier this month, Poz magazine’s Benjamin Ryan drew attention to a concerning new study out of Northern California’s health system: Using data gathered from July 2012 through June 2015, researchers found that, among a cohort consisting mostly of same-sex–attracted men on the HIV-prevention regimen PrEP, “quarterly rates of rectal gonorrhea and urethral chlamydia increased steadily and about doubled after one year.” In other words, guys on the fantastically effective pill-a-day Truvada program were avoiding HIV infection—there were no new transmissions for regimen-adherent patients over the study period, in fact—but they seemed to be getting other sexually transmitted diseases relatively often.