Almost all cases have been linked to close contact to diseased household flocks, often during slaughtering, defeathering, butchering, and preparation of poultry for consumption.
几乎所有的病例均与密切接触患病家养禽群有关，通常发生在宰杀、拔毛、剁斩和准备食用的家禽期间。
Almost all cases have been linked to close contact to diseased household flocks, often during slaughtering, defeathering, butchering, and preparation of poultry for consumption.
几乎所有的病例均与密切接触患病家养禽群有关，通常发生在宰杀、拔毛、剁斩和准备食用的家禽期间。
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