HIV rate up as young gay men ignore safe sex advice.
D000328:Adult; D000367:Age Factors; D015658:HIV Infections / Q000517:prevention & control*; D007722:Health Knowledge, Attitudes, Practice; D018451:Homosexuality, Male / Q000523:psychology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012736:Sex Education