Messages about AIDS reach some, not all.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control*; D000293:Adolescent; D000328:Adult; D000368:Aged; D003142:Communication; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D012736:Sex Education; D012725:Sexual Behavior; D014481:United States