On Wednesday, several HIV experts spoke at a Capitol Hill briefing “supporting the U.S. President’s Emergency Plan for AIDS Relief (PEPFAR) program’s reliance on scientific evidence to drive its work to end AIDS,” the Center for Global Health Policy’s “Science Speaks” blog reports. The speakers, including Diane Havlir of the University of California, San Francisco, RJ Simonds of the Elizabeth Glaser Pediatric AIDS Foundation, Renee Ridzon of the Bill & Melinda Gates Foundation, and Chris Beyrer of the Johns Hopkins School of Public Health, talked about using antiretroviral treatment as a prevention method, the prevention of mother-to-child HIV transmission, voluntary medical male circumcision, and preventing HIV among marginalized populations at high risk of infection (Mazzotta, 2/3).