extremely significantP < 0.01
However, the p95 (10 4.5 EID 50 ) group showed ciliary movement stagnation and ciliary shedding, and the difference was extremely significant compared with the negative control group ( P < 0.01), while there was no significant difference in the tracheal ciliary motility between the p105 (10 4.5 EID 50 )-vaccinated group and the non-vaccinated control group ( P > 0.05), illustrating that p105 generation is more suitable for vaccine development.