title: AIDS ... again.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D000328:Adult; D007722:Health Knowledge, Attitudes, Practice; D006716:Homosexuality; D006801:Humans; D015994:Incidence; D008297:Male; D012309:Risk-Taking; D012725:Sexual Behavior; D014481:United States