要防止发生家畜流行病，必须在暴发之前进行动物免疫。
Animal immunization must be implemented prior to an outbreak if an epizootic is to be prevented.
家畜流行病和相关的人类流行病也有可能传播到之前未受影响的地区。
There is also a potential for epizootics and associated human epidemics to spread to areas that were previously unaffected.
他重点关注包括病毒性出血热在内的家畜流行病学的研究。
His research interests focus on the study of epizootics, including viral hemorrhagic fevers.
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