Age range (days) | V1 (n = 20) | V2 (n = 19) | PCG (n = 19) |
P value |
---|
29–47 | 0.07 ± 0.26 | 0.28 ± 0.69 | 0.11 ± 0.37 | 0.108 |
48–83 | 0.79 ± 1.30 | 0.62 ± 1.20 | 0.65 ± 1.19 | 0.626 |
29–83 | 0.54 ± 0.94 | 0.50 ± 1.03 | 0.47 ± 0.91 | 0.852 |
- Scores ranged from 0 (no coughing) to 6 (severe coughing undisturbed) (Halbur et al. [29]). Treatment groups: V1 (vaccinated before weaning, at 18 days of age), V2 (vaccinated on the day of weaning, at 21 days of age) and PCG (non-vaccinated). Overall and pairwise comparisons did not reveal any significant differences between groups for the three different periods. D48: experimental infection, D83: euthanasia