Table 2.
PCR testing results of nasal swab samples from animals fed virus-inoculated feed, showing Ct values—the Saratov/2017 group.
| № Animal | Day Post-Ingestion | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 * | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 29 | 31 | 34 | 36 | 38 | 41 | 42 | 44 | 45 | |
| №1 | N | N | N | N | N | 35.87 | N | N | N | N | N | N | N | N | N | N | N |
| №2 | N | N | N | 36.17 | 25.80 | 26.20 | 29.26 | 30.44 | 31.72 | 32.34 | 37.19 | 28.85 | 34.05 | 35.19 | 32.82 | N | N |
| №3 | N | N | N | N | 33.72 | 35.94 | N | N | N | N | N | N | N | N | N | N | N |
| №4 | N | N | N | N | N | 34.16 | N | N | 33.35 | N | N | N | N | N | N | N | 35.65 |
| №5 | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| №6 | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
* All swab samples before day 15 were negative for virus when tested using real time PCR. N—negative by PCR. All Cts below 38 were considered positive.