Table 1.
SARS-CoV-2 titers (TCID50/ml) in supernatants of Vero and HEK-293 inoculated in duplicate at MOIs of 0.01 and 1, respectively. The value of 1.1 TCID50/ml represents the detection limit of the assay.
| Cell line (MOI) | Days post infection |
|||||
|---|---|---|---|---|---|---|
| 0 | 2 | 3 | 6 | 7 | 14 | |
| Vero (0.01) | 2.0 | NT | 4.9/4.9 | 5.4/5.6 | 5.6/5.8 | 4.7/5.0 |
| Vero (1) | 4.1 | 5.1/5.2 | 5.1/5.4 | 6.1/6.1 | 6.0/5.9 | 5.4/5.3 |
| HEK-293 (0.01) | 2.4 | NT | ≤1.1/≤1.1 | ≤1.1/≤1.1 | ≤1.1/≤1.1 | ≤1.1/≤1.1 |
| HEK-293 (1) | 4.5 | NT | 3.2/3.1 | 2.2/2.5 | 1.4/≤1.1 | ≤1.1/≤1.1 |
MOI, Multiplicity of infection; NT, not tested.