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Result of ciliostasis test scores and survival of vaccinated chickens challenged with IBV, 3 weeks post-vaccination.
| Group | Ciliostasis Score a | Protection Rate b (%) |
|---|---|---|
| LaSota | 37.6 | 0 |
| rNDV-IBV-T/B | 4.2 | 90 |
| PBS | 39.4 | 0 |
a. Mean ciliostasis score per chicken for 10 tracheas examined in each group; maximum possible score (no protection) = 40. b Protection rate in each group based on survival following IBV challenge.
