title: Understanding the AIDS epidemic and reacting sensibly to it.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control* / Q000635:transmission; D003431:Cross-Cultural Comparison; D003906:Developing Countries; D004196:Disease Outbreaks; D015528:HIV Seroprevalence / Q000639:trends; D015497:HIV-1; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D012307:Risk Factors