title: Barriers to reducing HIV transmission in youth.
mesh_terms: D000293:Adolescent; D000328:Adult; D002487:Centers for Disease Control and Prevention, U.S.; D015658:HIV Infections / Q000517:prevention & control* / Q000635:transmission*; D006801:Humans; D012736:Sex Education; D012725:Sexual Behavior; D014481:United States; D055815:Young Adult