False-negative ELISA result for HIV antibody due to an apparent prozone phenomenon.
D000914:Antibodies, Viral / Q000032:analysis*; D004797:Enzyme-Linked Immunosorbent Assay; D005188:False Negative Reactions; D006678:HIV / Q000276:immunology*; D006801:Humans; D011933:Reagent Kits, Diagnostic
D000914:Antibodies, Viral; D011933:Reagent Kits, Diagnostic