Origin of AIDS discovered.
Dawson
D
D
D000349:Africa / Q000453:epidemiology; D000818:Animals; D015658:HIV Infections / Q000453:epidemiology / Q000821:virology*; D015497:HIV-1 / Q000235:genetics / Q000472:pathogenicity*; D006801:Humans; D002679:Pan troglodytes / Q000821:virology*; D015302:Simian Immunodeficiency Virus / Q000235:genetics / Q000472:pathogenicity*