Table 3.

Ct values obtained in the SARS-CoV-2 qPCR assay and quantification results for every sample tested.

Sample name	Dilution tested	CT obtained in RT-quantitative PCR			Copies/µL			Final concentration (copies/mL)
		Replicates	Mean	SD	Replicates	Mean	SD
Clinical sample 1	1/1000	24.0	23.7	0.3	407	496	92.7	5.0E+08
		23.8			456
		23.4			623
Clinical sample 2	1/100	23.5	23.4	0.1	923	971	58.4	9.7E+07
		23.4			937
		23.3			1,053
WHO international standard	1/100	27.5	27.2	0.2	114	142	20.5	1.4E+07
		27.0			163
		27.1			1489

Ct: cycle threshold; PCR: polymerase chain reaction; WHO: World Health Organization.