Abstract

We evaluated the analytical performance of the Elecsys® Epstein-Barr virus (EBV) immunoassay panel for the in vitro detection of EBV immunoglobulin M (IgM), EBV viral capsid antigen immunoglobulin G (VCA IgG), and EBV nuclear antigen immunoglobulin G (EBNA IgG). Relative sensitivity/specificity were assessed using 1,734 human blood samples (1,068 residual samples from routine EBV testing; 467 presumed acute infection; 199 presumed seronegative) tested with the Elecsys EBV and 2 comparator panels (ARCHITECT EBV; Liaison EBV). EBV infection status was defined by majority approach. The three panels demonstrated comparable relative sensitivities/specificities, ranging between values (%) of 98.3−99.5 / 96.9−97.4 (EBV IgM); 96.3−98.4 / 98.4−98.7 (EBV VCA IgG); and 98.1−99.5 / 99.1−99.5 (EBV EBNA IgG). The Elecsys EBV IgM assay demonstrated superior analytical specificity in samples containing potential interferents. Utilizing the Elecsys EBV panel for the EBNA-first approach showed 97.5% overall agreement versus the majority approach in samples with clear EBV status.

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