After this test showed Shane Ryan's blood was negative for the AIDS virus, Magnet's nurse practitioner Pierre-Cédric Crouch (background) offered him anti-HIV drugs to prevent infection. Image by Drew Bird. United States, 2015.
After what Shane Ryan calls “a silly, stupid weekend” in late April, he joined the many other men in San Francisco, California, who line up six mornings each week and wait for the doors to open at Magnet. Located in the city's Castro district, Magnet provides sexual health services for gay and bisexual men. Last year, the center diagnosed 37% of the new HIV infections in the city. Ryan, like most of the other men in line, came to find out whether his condomless sex had the consequence he feared. “Usually, I'm very safe, always precautious, but I went a little sidetracked that weekend,” Ryan said.
Ryan, who is 24 years old and grew up in Ireland, met with a nurse practitioner, who explained that he could immediately start taking antiretrovirals (ARVs). This so-called postexposure prophylaxis (PEP) might abort an infection if indeed he had been exposed to HIV, the nurse explained. Ryan began taking a pill each day that contains four ARVs.
Read the full story by Pulitzer Center grantee Jon Cohen for Science Magazine.