Table 3.

Positive rates of RT-RAA and qRT-PCR in different samples

Sample	Positive RT-RAA	Positive qRT-PCR
Pharynx swab	37.89 (309/834)	38.37 (313/834)
Sputum	7.32 (6/82)	8.54 (7/82)
Nasopharyngeal swab	87.5 (14/16)	87.5 (14/16)
Nasal swab	62.5 (5/8)	62.5 (5/8)
Bronchoalveolar lavage fluid	100 (4/4)	100 (4/4)
Stool	0 (0/2)	0 (0/2)
Whole blood	0 (0/1)	0 (0/1)

Data are presented as percentage (n/N).

qRT-PCR, quantitative real-time PCR; RT-RAA, reverse transcription recombinase–aided amplification.