Table 2.
Data resulting from the comparison of cytopathic effect and Ct values obtained by PCR analyses in relation to the different infectious viral doses used to standardize the test. The indicated Ct values are the average medium ones, obtained by the four replicates.
| Infectious Viral Doses (TCID50) | 72 h | 96 h | 120 h | |
|---|---|---|---|---|
| Starting Ct (RdRp) | Ct Value (RdRp) | Ct Value (RdRp) | Ct Value (RdRp) | |
| 10 | 27.33 | 12.31 | - | |
| 5 | 28.60 | 12.10 | - | |
| 1 | 24.42 | 17.13 | 13.73 | - |
| 0.5 | 30.77 | 32.56 | 36.02 | Negative |
| 0.1 | 32.67 | 34.67 | 34.46 | Negative |
Notes: Cycle thresholds (Ct) of the RdRp gene. Median Tissue Culture Infectious Dose (TCID50).