New federal screening guidelines mark change in CDC's stance on AIDS testing.
D000163:Acquired Immunodeficiency Syndrome / Q000175:diagnosis / Q000517:prevention & control*; D002487:Centers for Disease Control and Prevention, U.S.; D003955:Diagnostic Tests, Routine / Q000592:standards*; D006801:Humans; D007882:Legislation, Hospital; D014481:United States