contagious equine abortion

例句：

1. 1.The outbreak of contagious equine abortion has been a major concern for veterinarians.
   传染性马流产的爆发已成为兽医们的主要担忧。
2. 2. The horse was found to have contagious equine abortion, which required immediate treatment.
   这匹马被发现患有传染性马流产，需要立即治疗。
3. 3. The research team is studying the causes and treatments of contagious equine abortion.
   研究小组正在研究传染性马流产的原因和治疗方法。