Table. 1. Table 1

Results of rRT-PCR* and Xpert Xpress SARS-CoV-2 assays

Clinical specimen number	Date of confirmation	Result (Ct)

		rRT-PCR		Xpert Xpress SARS-CoV-2 Assay

		E	RdRp	E	N2
1	01-Mar-20	30.2	33	30.4	33.6
2	03-Mar-20	26.3	27.5	26.3	28.5
3	27-Mar-20	30	31.9	30.7	34.2
4	01-Apr-20	27.6	29.5	29.4	32
5	24-Apr-20	33.5	33.3	33.7	37.6
6	20-Sep-20	26.2	25.6	27.5	39.3
7	21-Sep-20	32.2	32.7	33.5	44.3
8	22-Sep-20	26.8	26.5	28.7	40.8
9	22-Sep-20	33	32.8	33.5	ND
10	26-Sep-20	29	29.1	30.6	ND

*STANDARD M nCoV Real-Time Detection kit (SD Biosensor, Suwon, Korea).

Abbreviations: Ct, threshold cycle; E, envelope gene; N, nucleocapsid gene; ND, not detected; RdRp, RNA-dependent RNA polymerase gene; rRT-PCR, real-time reverse transcription PCR.

Ann Lab Med 2022;42:96~99 https://doi.org/10.3343/alm.2022.42.1.96