Retesting of sera for antibodies to HIV-1/HIV-2.
D015492:AIDS Serodiagnosis / Q000706:statistics & numerical data*; D000163:Acquired Immunodeficiency Syndrome / Q000175:diagnosis* / Q000276:immunology; D005188:False Negative Reactions; D015483:HIV Antibodies / Q000097:blood*; D015497:HIV-1 / Q000276:immunology*; D015498:HIV-2 / Q000276:immunology*; D006801:Humans; D012680:Sensitivity and Specificity; D006113:United Kingdom
D015483:HIV Antibodies