Leptospira

例句：

1. 1.The doctor diagnosed the patient with leptospira infection.
   医生诊断患者患有钩端螺旋体感染。
2. 2.The outbreak of leptospira in the city has been a major concern.
   该市的钩端螺旋体爆发引起了广泛关注。
3. 3. Researchers have found that leptospira can cause severe diseases in humans.
   研究人员发现钩端螺旋体可以导致人类严重的疾病。