New research that begins to explain why gay and bisexual black men carry such a disproportionate burden of HIV infection in the United States also shows how intricately woven the epidemic's web of human behavior, microbial interaction, and treatment access has become.
Overall, the Centers for Disease Control and Prevention (CDC)
in Atlanta, estimates that of the roughly 1 million individuals with HIV infection living in the United States, 45% are men who have sex with men (MSM) compared with 27% who were infected through heterosexual contact and 22% infected through use of injection drugs.
Voelker R. Studies Illuminate HIV’s Inequalities. JAMA. 2008;299(3):269–275. doi:10.1001/jama.299.3.269
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