In this Feb. 7, 2014 photo provided by Gustavo Monroy, Damon Jacobs, a therapist who's been taking Truvada daily since 2011, speaks at an event in New York to encourage more gay men to learn about the drug's preventive capabilities. Many doctors and activists see immense promise for such preventive use of the drug Truvada, and are campaigning hard to raise awareness of it as a crucial step toward reducing new HIV infections, which now total about 50,000 a year in the U.S. (AP Photo/Gustavo Monroy)