Interlaboratory Agreement of Anti-Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Serologic Assays in the Expedited College of American Pathologists Proficiency Testing Program
SARS-CoV-2 is a pandemic virus and the etiologic agent of coronavirus disease 2019 (COVID-19) Clinical testing for antibodies to the virus has rapidly become widespread. The College of American Pathologists developed a new proficiency testing survey for anti-SARS -CoV -2 antibody assays. Results were analyzed for agreement by immunoglobulin (Ig) isotype tested, assay manufacturer, and methodology.

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