HIV spread drops in some, but increases in others.
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D005260:Female; D015658:HIV Infections / Q000453:epidemiology* / Q000208:ethnology; D006630:Hispanic or Latino; D006801:Humans; D008297:Male; D014481:United States / Q000453:epidemiology