•In 2010, gay and bisexual men accounted for 63% of estimated new HIV infections in the United States and 78% of infections among all newly infected men. From 2008 to 2010, new HIV infections increased 22% among young (aged 13-24) gay and bisexual men and 12% among gay and bisexual men overall....
...The Centers for Disease Control and Prevention (CDC) recommends that all gay and bisexual men get tested for HIV at least once a year. Sexually active gay and bisexual men may benefit from more frequent testing (e.g., every 3 to 6 months).
Sexual risk behaviors account for most HIV infections in gay and bisexual men. Most gay and bisexual men acquire HIV through anal sex, which is the riskiest type of sex for getting or transmitting HIV...
...correctly use a condom every time for anal or vaginal sex. Gay men are at increased risk for sexually transmitted diseases (STDs), like syphilis, gonorrhea, and chlamydia, and CDC recommends that all sexually active gay and bisexual be tested at least annually for these infections and obtain treatment, if necessary.
Having more sex partners compared to other men means gay and bisexual men have more opportunities to have sex with someone who can transmit HIV or another STD. Similarly, among gay men, those who have more partners are more likely to acquire HIV...
CDC ? Fact Sheet - Gay and Bisexual Men ? Gender ? Risk ? HIV/AIDS