Double HIV-1 and HIV-2 seropositivity among blood donors.
D000914:Antibodies, Viral / Q000032:analysis*; D001782:Blood Donors; D006678:HIV / Q000276:immunology*; D015483:HIV Antibodies; D006801:Humans; D012189:Retrospective Studies
D000914:Antibodies, Viral; D015483:HIV Antibodies