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Table 1 SARS-CoV-2 RNA in different specimens from COVID-19 patients

From: Necessity for detection of SARS-CoV-2 RNA in multiple types of specimens for the discharge of the patients with COVID-19

Types of specimen Sample number ORF1ab and N genes both positive Only ORF1ab gene positive Only N gene positive ORF1ab and N genes both negative
No. Rate (%) No. Rate (%) No. Rate (%) No. Rate (%)
Nasopharyngeal swab 463 297 64.15 28 6.05 4 0.86 134 28.94
Oropharyngeal swab 39 10 25.64 0 0.00 2 5.13 27 69.23
Sputum 382 61 15.97 37 9.69 11 2.88 273 71.47
BALF 15 7 46.67 3 20.00 0 0.00 5 33.33
Stool 262 32 12.21 7 2.67 1 0.38 230 87.79
Anal swab 98 8 8.16 2 2.04 1 1.02 87 88.78
Urine 135 12 8.89 6 4.44 4 2.96 113 83.70
PDF 1 0 0 0 0 0 0 1 100
Blood 40 3 7.50 1 2.50 1 2.50 35 87.50
Sweat 12 0 0 0 0 0 0 12 100
CSF 2 0 0 0 0 0 0 2 100
Corneal secretion 67 1 1.49 1 1.49 0 0 65 97.02
  1. BALF Broncho alveolar lavage fluid, PDF peritoneal dialysis fluid, CSF cerebrospinal fluid