Table 1. Positive samples in test panel^a.

Sample code	SARS-CoV strain	Virus RNA concentration copies/mL	Fraction of laboratories with positive detection (%)
S-CV2	Frankfurt 1	940,000	100
S-CV9	Frankfurt 1	94,000	98.3
S-CV6	HKU-1	23,500	98.3
S-CV4	Frankfurt 1	9,400	94.8
S-CV10	HKU-1	2,350	87.9
S-CV1	Frankfurt 1	940	70.7
S-CV5	Frankfurt 1	94	43.1

^aSARS-CoV, severe acute respiratory syndrome–associated coronavirus.