Dunseth et al. underlined the necessity of differentiation between analytical false-positive results of lues tests from clinical false-positive results. A positive syphilis IgG screen with negative RPR and T. pallidum particle agglutination assay (TP-PA) confirmatory testing could be considered an analy...
How is it possible to get a false negative on an ELISA test? Causes of false-negative EIA results include the following:Technical error.Testing during the window period.Decreased host immunoglobulin production suchas in a common variable immunodeficiency and advanced AIDS. How accurate is ELISA test...