TABLE 3.
Incidence of PRRSV genomic copies in serum on day of PRRSV challenge and days 7 and 14 postinoculation
| Group | Incidence (no. of PRRSV-positive pigs/total no. of pigs in group [group mean of log-transformed data ± SE]) on postinoculation daya:
|
||
|---|---|---|---|
| 0 | 7 | 14 | |
| L-VAC | 0/10 (0.0 ± 0.0) | 2/10 (0.6 ± 0.5)* | 0/10 (0.0 ± 0.0)* |
| H-VAC | 0/10 (0.0 ± 0.0) | 0/10 (0.0 ± 0.0)* | 0/10 (0.0 ± 0.0)* |
| SDSU73-L-VAC | 1/10 (0.2 ± 0.2) | 1/10 (0.3 ± 0.3)* | 0/10 (0.0 ± 0.0)* |
| SDSU73-H-VAC | 0/10 (0.0 ± 0.0) | 0/10 (0.00 ± 0.0)* | 0/10 (0.0 ± 0.0)* |
| Control | 0/10 (0.0 ± 0.0) | 8/10 (3.9 ± 0.7)** | 8/10 (2.0 ± 0.5)** |
a
Different symbols (* and **) within a column indicate significant (P < 0.001) differences in group mean values and incidences.