The prevention of AIDS by modifying sexual behavior.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control* / Q000523:psychology; D000293:Adolescent; D000328:Adult; D001521:Behavior Therapy; D006069:Gonorrhea / Q000453:epidemiology; D006716:Homosexuality; D006801:Humans; D008297:Male; D009519:New York City; D012725:Sexual Behavior; D014481:United States