New testing helps CDC track HIV.
D000465:Algorithms; D002487:Centers for Disease Control and Prevention, U.S.; D015483:HIV Antibodies / Q000097:blood; D015658:HIV Infections / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D011159:Population Surveillance; D014481:United States / Q000453:epidemiology
D015483:HIV Antibodies