HIV and AIDS among
Gay and Bisexual Men
Gay and bisexual men — referred to in CDC surveillance systems as men who have sex with men (MSM)1 — of all races continue to be the risk group most severely affected by HIV. Additionally, this is the only risk group in the U.S. in which the annual number of new HIV infections is increasing. There is an urgent need to expand access to proven HIV prevention interventions for gay and bisexual men, as well as to develop new approaches to fight HIV in this population.
MSM account for nearly half of the more than one million people living with HIV in the U.S. (48%, or an estimated 532,000 total persons).
MSM account for more than half of all new HIV infections in the U.S. each year (53%, or an estimated 28,700 infections).
While CDC estimates that MSM account for just 4 percent of the U.S. male population aged 13 and older, the rate of new HIV diagnoses among MSM in the U.S. is more than 44 times that of other men (range: 522–989 per 100,000 MSM vs. 12 per 100,000 other men).
MSM are the only risk group in the U.S. in which new HIV infections are increasing. While new infections have declined among both heterosexuals and injection drug users, the annual number of new HIV infections among MSM has been steadily increasing since the early 1990s.