HIV-1 ANTIBODY SERUM NEGATIVITY WITH URINE POSITIVITY

7 individuals who were negative for HIV-1 antibody in a licensed serum enzyme immunoassay (EIA) were positive in a urine EIA and western blo t (WB). Follow-up in individuals by use of a cell-mediated immune resp onse showed 1 positive and 1 negative for HIV-1 peptide reactivity. In a second study, 4 out of 5 subjects positive by urine EIA and indeter minate or negative by serum WB were HIV-1 peptide positive in the cell -mediated immune test. Comparison of cell-mediated responses with urin e antibody responses may help to resolve discrepant HIV-1 results.