HIV and sexually transmitted disease.
D000163:Acquired Immunodeficiency Syndrome / Q000266:history / Q000821:virology; D000818:Animals; D004196:Disease Outbreaks / Q000266:history; D015658:HIV Infections / Q000266:history / Q000635:transmission* / Q000821:virology; D049673:History, 20th Century; D006801:Humans; D016180:Lentivirus Infections / Q000635:transmission; D015047:Zoonoses / Q000821:virology