它在禽类中传播非常迅速,感染多个内脏器官,通常在48小时内,死亡率可达到100%。
It spreads very rapidly through poultry flocks, causes disease affecting multiple internal organs, and has a mortality that can approach 100%, often within 48 hours.
它在禽类中传播非常迅速,感染多个内脏器官,通常在48小时内,死亡率可达到100%。
It spreads very rapidly through poultry flocks, causes disease affecting multiple internal organs, and has a mortality that can approach 100%, often within 48 hours.
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