Sexually transmitted disasters?
D002690:Chlamydia Infections / Q000453:epidemiology* / Q000517:prevention & control; D004351:Drug Resistance; D015658:HIV Infections / Q000453:epidemiology* / Q000517:prevention & control; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D008875:Middle Aged; D009519:New York City / Q000453:epidemiology; D021841:Safe Sex