Recent research published in The New England Journal of Medicine shows that within certain populations in America, the prevalence of HIV-infected people is higher than in certain parts of Africa:

More than 1 in 30 adults in Washington, D.C., are HIV-infecteda prevalence higher than that reported in Ethiopia, Nigeria, or Rwanda. Certain U.S. subpopulations are particularly hard hit. In New York City, 1 in 40 blacks, 1 in 10 men who have sex with men, and 1 in 8 injection-drug users are HIV-infected, as are 1 in 16 black men in Washington, D.C. In several U.S. urban areas, the HIV prevalence among men who have sex with men is as high as 30%as compared with a general-population prevalence of 7.8% in Kenya and 16.9% in South Africa.

Whats interesting is that the research shows that a persons sexual network, more than just his or her lifestyle choices, defines the risk of getting HIV in America. So, black and Hispanic women are at increased risk due to the instability of their sexual relationships which is attributed to the high rate of incarceration of men in their networksand their vulnerable or dependent economic situation, which may cause them to be fearful of suggesting safer-sex options to their companions. And black men who have sex with men are at high risk because of the likelihood of their choosing to engage in sexual activity with someone who is racially similar, and because of the prevalence of HIV within their sexual networks.