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Proportion of pigs ever virus isolation (VI) positive for nasal swab after H1N2 challenge 12 weeks post‐vaccination
| Treatment | Ever positive for nasal swab VI | Positive on last day | Proportion positive (95 CL) | P‐value |
|---|---|---|---|---|
| Control | 31/32 (97%) | 5/32 (16%) | 0.97 (0.73, 1.00) | 0.011 |
| Vaccine | 21/40 (53%) | 0/40 (0%) | 0.53 (0.34, 0.70) |
95CL, upper and lower 95% confidence limits; VI, virus isolation.
