但是加拿大的猪已经被人感染了，这说明动物也是易感染者。
But pigs in Canada have contracted it from a human, indicating that the animals are susceptible.
感染者或者易感人群的聚集、受到削弱的公共健康基础设施、以及现有疾病控制系统的中断，都是导致媒介传染病传播的因素（36）。
The crowding of infected and susceptible hosts, a weakened public health infrastructure, and interruptions of ongoing control programs are all risk factors for vectorborne disease transmission (36).
感染者或者易感人群的聚集、受到削弱的公共健康基础设施、以及现有疾病控制系统的中断，都是导致媒介传染病传播的因素（36）。
The crowding of infected and susceptible hosts, a weakened public health infrastructure, and interruptions of ongoing control programs are all risk factors for vectorborne disease transmission (36).
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