Standardization of two SARS-CoV-2 serology assays to the WHO 20/136 human standard reference material

WHO 20/136 is standard reference material for SARS−COV-2 serology assays. Standardization of serology assays that target the same antigen and class of immunoglobulin will enable comparison of results between studies that use various lab-developed and commercial assays around the world. Standardizati...

Descripción completa

Detalles Bibliográficos
Autores principales: Freeman, James, Conklin, Justin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier B.V. 2022
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8667347/
https://www.ncbi.nlm.nih.gov/pubmed/34915088
http://dx.doi.org/10.1016/j.jviromet.2021.114430
Descripción
Sumario:WHO 20/136 is standard reference material for SARS−COV-2 serology assays. Standardization of serology assays that target the same antigen and class of immunoglobulin will enable comparison of results between studies that use various lab-developed and commercial assays around the world. Standardization of assays will help better define immune correlates of protection and possibly immune correlates of vaccine efficacy. Two automated SARS−COV-2 anti-S1 RBD immunoglobulin serology assays on the Atellica IM Analyzer were calibrated to WHO 20/136 Standard Reference Material which was assigned 1000 binding antibody units (BAU/mL). The anti-S1 RBD IgG assay (sCOVG) cut-off Index of 1.00 corresponded to WHO 45.1 BAU/mL, and the anti-S1 RBD Ig Total assay (COV2T) cut-off Index of 1.00 corresponded to WHO 6.70 BAU/mL.

Ejemplares similares