An international comparison of anti-SARS-COV-2 assays used for seroprevalence surveys from blood component providers.
Antoine LewinSteven J DrewsRyanne Lieshout-KrikkeChristian ErikstrupSahar SaeedHelen M FaddySamra UzicaninBrian S CusterSheila F O'Briennull nullPublished in: Vox sanguinis (2021)
Our results highlight the diversity of assays being used. Analyses comparing blood donor seroprevalence across countries should consider assay characteristics with optimization of signal/cut-off ratios and consistent methodology to adjust for waning antibody.