Using patient-collected clinical samples and sera to detect and quantify the severe acute respiratory syndrome coronavirus (SARS-CoV)

Table 2 Detection and quantitation of SARS-CoV RNA by RT-PCR in throat washes.

Days after onset	Samples	Positive (number, %)	Viral load (log₁₀ copies/ml ± SD)
1–4	8	3 (37.5)	4.73 ± 0.45
5–9	45	27 (60)	3.59 ± 1.36
10–14	24	15 (62.5)	3.33 ± 1.37
15–19	11	5 (45.5)	1.88 ± 1.00
20–24	4	0	-
≥25	4	0	-
Total	96	50 (52.1)	3.45 ± 1.39

ISSN: 1743-422X