How many gay men have HIV?

In 2007, worldwide about 0.8% of all adults were HIV-positive.

In the United States in 2002, the estimate was that 300,000 men were HIV-positive; the number of these men who are gay is not known precisely because many men who have HIV are not gay, and may who have sex with other men will not admit to being gay.

In 2007, the estimate was the 1 in 5 urban gay men is HIV-positive, or 20%.