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. 2020 Oct 15;511:177–180. doi: 10.1016/j.cca.2020.10.004

Table 2.

Detection of SARS-CoV-2 in respiratory sites of COVID-19 cases.

Groups Sample types
p values
Throat swabs (n/N, %) Nasal swabs(n/N, %) Sputum (n/N, %) Saliva (n/N, %)
Sputum 8/23 (34.78) 15/23 (65.22) 22/23 (95.65) NA <0.001
Saliva 19/42 (45.24) 32/42 (76.19) NA 37/42 (88.09) <0.001
Total 27/65 (41.54) 47/65 (72.31) 22/23 (95.65) 37/42 (88.09) <0.001

Bold texts indicate P < 0.05.

Abbreviation: NA, not applicable.