Update: heterosexual transmission of acquired immunodeficiency syndrome and human immunodeficiency virus infection--United States.
D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000635:transmission*; D000293:Adolescent; D000367:Age Factors; D001727:Bisexuality; D005260:Female; D006679:HIV Seropositivity / Q000453:epidemiology / Q000635:transmission; D006801:Humans; D008297:Male; D011159:Population Surveillance; D012737:Sex Factors; D011477:Sex Work; D012725:Sexual Behavior; D014481:United States