Studing HA have a vital significance to reveal pathogenic mechanism of AIV and immunoprevention AI.

研究HA蛋白对揭示禽流感病毒的致病机理和免疫防治禽流感均具有重要意义.

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Therefore, we concluded that migratory birds would spread AIV in its eruptive period.

因此, 该次疫情中候鸟中存在传播禽流感病毒的可能性.

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