Rapid SARS-CoV-2 antigen detection assay in comparison with real-time RT-PCR assay for laboratory diagnosis of COVID-19 in Thailand

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

ISSN: 1743-422X