In contrast, virus persistence is generally associated with impairment, especially of t cell responses.

相反，病毒持续存在则一般与免疫应答尤其是T细胞应答受损有关。

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So the main feature is that a patient with a chronic evolution of infection has adaptive responses which are functionally impaired and certainly this is very important to allow virus persistence.

所以，主要特征是感染慢性进展的患者其获得性免疫应答在功能上受到损害，这对允许病毒持续存在非常重要。

youdao

So the main feature is that a patient with a chronic evolution of infection have adaptive responses which are functionally impaired and certainly this is very important to allow virus persistence.

所以，主要特征是感染慢性进展的患者其获得性免疫应答在功能上受到损害，这对允许病毒持续存在非常重要。

youdao

Given the persistence of the H5N1 virus in some poultry populations, control will require long-term commitments from countries and strong coordination between animal and public health authorities.

考虑到H5N1病毒在某些禽类群体间持续存在的状况，需要国家做出长期承诺来控制疾病，还需要动物与公共卫生当局之间的强有力协作。

youdao

Given the persistence of the H5N1 virus in some poultry populations, control will require long-term commitments from countries and strong coordination between animal and public health authorities.

考虑到H5N1病毒在某些禽类群体间持续存在的状况，需要国家做出长期承诺来控制疾病，还需要动物与公共卫生当局之间的强有力协作。

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