Test results for 12 persons with reactive rapid test results classified as HIV-uninfected but who had an indeterminate WB at the last repeat confirmatory test, 17 health departments, 11 August 2004 to 31 December 2005.

EIA = enzyme immunoassay, WB = Western blot, Neg = Negative, ND = Not done *Bands interpreted as equivocal[ ] results reported by CDC lab where Genetic Systems HIV1/HIV2 Plus O and Genetic Systems HIV-1 Western blot were used unless otherwise notedaVironostika HIV-1 Microelisa System, bioMerieuxbFluorognost Sanochemia IFAcRoche Cobas Amplicor HIV-1 Monitor Assay (ultra-sensitive to 50 copies/ml)dGen-Probe Procleix HIV-1 RNA AssayeBio-Rad HIV-1/HIV-2 plus OfGenetic Systems HIV-1 Western blotgAbbott HIVAB HIV-1/HIV-2 (rDNA) EIAhCambridge Biotech HIV-1 Western blotiOraSure HIV-1 Western blot