. 2004 Jan 1;50(1):67–72. doi: 10.1373/clinchem.2003.023663

Table 2.

Detection rates of SARS-CoV in real-time quantitative RT-PCR assays.

	Assay for the ORF 1b sequence of SARS CoV			Total
		Positive	Negative	Total
Assay for the N gene of SARS CoV	18	3	21
Positive
Negative	1	46	47
Total	19	49	68