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Hybrid DABA specificity and sensitivity determination Scatter plot distribution of the Hybrid DABA BRs of A) 825 archival serum samples that pre-dated the SARS-CoV-2 epidemic assayed and B) 276 samples from patients infected with SARS-CoV-2. Dotted line represents the assay cut-off. Test /Cut-off binding ratios (BR) are displayed on A) a linear scale and B) on a log10 scale.
