Table 3 Concordance of the SARS-COV-2 antigen RDT assay and the ExoDx COVID-19 RT-qPCR assay.

From: A SARS-CoV-2 antigen rapid diagnostic test for resource limited settings

RT-qPCR result

RDT test line result

RDT control line result

Negative

0/40

40/40

Positive

35/40

40/40

  1. SARS-CoV-2 antigen RDT results achieved 87.5% sensitivity and 100% specificity in a clinical cohort of 40 negative samples and 40 positives that were confirmed by RT-qPCR.
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