World AIDS Day ushers to emphasize need for prevention.
D000846:Anniversaries and Special Events; D005260:Female; D015658:HIV Infections / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission; D006801:Humans; D018445:Infectious Disease Transmission, Vertical; D008297:Male; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious; D011287:Prejudice