virus pneumonia of pigs

例句：

1. 1.Pigs are susceptible to viruses that cause pneumonia.
   猪容易感染导致肺炎的病毒。
2. 2. The outbreak of the virus pneumonia in pigs has been a major concern for farmers.
   猪的病毒性肺炎疫情一直是农民们的一大担忧。
3. 3.To prevent the spread of this disease, it is important to vaccinate pigs against the virus pneumonia.
   为了预防这种疾病的传播，对猪进行疫苗接种以抵抗病毒性肺炎是重要的。