Table 1.
Detection rates of PRRSV in the serum samples from pigs at different ages from both the CSFV MLV and E2 groups.
| Age (Weeks) | CSFV Vaccine Type | Total | P Value † | |
|---|---|---|---|---|
| MLV | E2 | |||
| <4 | 47/276 (17.03) | 18/135 (13.33) | 65/411 (15.82) | 0.412 |
| 5–8 | 110/261 (42.15) | 42/141 (29.79) | 152/402 (37.81) | 0.019 |
| 9–12 | 86/261 (32.95) | 37/119 (31.09) | 123/380 (32.37) | 0.081 |
| >13 | 19/145 (13.10) | 0/60 (0) | 19/205 (9.27) | N/A * |
| Total | 262/943 (27.78) | 97/455 (21.32) | 359/1398 (25.68) | 0.011 |
†P values < 0.05, < 0.01 and < 0.001 were considered statistically significant, highly significant and very highly significant, respectively. * N/A, not applicable; the chi-square calculation does not support cell values that are zero.