Rickettsia prowazekii

例句：

1. 1.Rickettsia prowazekii is a type of bacterium that causes tularemia.
   里氏菌是一种引起鼠疫的细菌。
2. 2. Rickettsia prowazekii has been found in the feces of infected animals.
   里氏菌已在感染动物的粪便中被发现。
3. 3.The discovery of Rickettsia prowazekii has led to new research on the disease.
   里氏菌的发现促使了对这种疾病的新研究。