Update: heterosexual transmission of acquired immunodeficiency syndrome and human immunodeficiency virus infection: United States.
D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000635:transmission*; D005260:Female; D015658:HIV Infections / Q000453:epidemiology / Q000635:transmission*; D006801:Humans; D008297:Male; D012725:Sexual Behavior; D014481:United States / Q000453:epidemiology