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. 2020 Nov 13;17:177. doi: 10.1186/s12985-020-01452-5

Table 2.

The sensitivity and specificity of the Standard Q COVID-19 Ag test

RT-PCR assay (Allplex™ 2019-nCoV Assay)
Positive #1Negative Total
Rapid SARS-CoV-2 antigen assay (Standard Q COVID-19 Ag kit)
Positive 59 5 64
Negative 1 389 390
Total 60 394 454
Sensitivity 98.33% (59/60; 95%CI, 91.06–99.96%)
Specificity 98.73% (389/394; 95%CI, 97.06–99.59%)

#1Negative RT-PCR is defined as having Ct-values of E, RdRp, and N larger than 40