Table 3 Number (percentage) of influenza A virus rRT-PCR positive litters by farm and sampling event after whole herd sow vaccination and implementing enhanced biosecurity protocols
Experimental group | Farm | Sampling events | |||
|---|---|---|---|---|---|
Week 12 (%) | Week 13 (%) | Week 14 (%) | Total (%) | ||
Treatment | A | 15/30a (50) | 16/30 (53.3) | 25/30 (83.3) | 56/90 (62.2) |
Treatment | B | 11/30 (36.7) | 0/30 (0) | 1/30 (3.3) | 12/90 (13.3) |
Treatment | C | 0/30 (0) | 0/30 (0) | 0/30 (0) | 0/90 (0) |
Treatment | D | 0/30 (0) | 0/30 (0) | 0/30 (0) | 0/90 (0) |
Treatment | E | 0/30 (0) | 0/30 (0) | 0/30 (0) | 0/90 (0) |
Control | F | 21/30 (70) | 20/30 (66.7) | 30/30 (100) | 71/90 (78.9) |