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[Preprint]. 2021 Sep 14:2021.09.14.460394. [Version 1] doi: 10.1101/2021.09.14.460394

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Figure 1. — Ortho-Vitros platform assay was performed to detect total Immunoglobulin (Ig) against SARS-CoV2 spike protein and expressed as signal to cut-off ratio (S/CO). Abbott platform assay was performed to detect gamma Ig (IgG) against SARS-CoV2 nucleoprotein and expressed as Index value. (A) IC50 and S/CO values for total Ig against spike protein of matched samples were analyzed for correlation. (B) IC50 and Index values for IgG against nucleoprotein were analyzed for correlation. Spearman’s Correlation coefficient, ρ was determined in each scenario.