swine paratyphoid

例句：

1. 1. The pig farm was the source of swine paratyphoid in the area.
   这个养猪场是该地区猪副伤寒的源头。
2. 2.The outbreak of swine paratyphoid has been a major concern for the local authorities.
   猪副伤寒的爆发已成为当地当局的主要担忧。
3. 3. The veterinarians are working tirelessly to control the spread of swine paratyphoid.
   兽医们正在不懈努力，以控制猪副伤寒的传播。