Table 3.
Detection of SARS-CoV-2 Nucleic Acids, Protein, and Infectious Virions in Gastrointestinal Samples Collected From Asymptomatic Endoscopy Patients
| Patient ID | Cohort | Sample type (RT-PCR) | N1 (Ct) | N2 (Ct) | E (Ct) | RNaseP (Ct) | Virus isolation | Nucleocapsid pos. cells/ 10 colonic cryptsa |
|---|---|---|---|---|---|---|---|---|
| BDH 121 | A | Colon tissue | 38.0 | 38.2 | 36.7 | 33.1 | Negative | 0.00 ± 0.00 |
| BDH 154 | B | Colon liquid | 30.0 | 31.8 | 31.4 | 33.0 | Negative | 1.96 ± 0.22 |
| BDH 156 | B | Colon liquid | 33.1 | 35.4 | 35.7 | 33.2 | Negative | 2.89 ± 0.71 |
| BDH 160 | B | Colon liquid | 38.0 | 36.9 | n.d. | 31.8 | Negative | 2.59 ± 0.25 |
n.d., not detected.
a
Mean ± SD, from 2 independent researchers; 75 or more crypts were evaluated in each biopsy sample.