yersinia pestis

n.a bacillus bacterium that causes the plague; aerosolized bacteria can be used as a bioweapon

1. The bacterium Yersinia pestis is responsible for causing the plague in humans.
   Yersinia pestis 细菌是导致人类鼠疫的病原体。
2. The outbreak of Yersinia pestis in the Middle Ages led to the death of millions of people in Europe.
   中世纪 Yersinia pestis 的爆发导致了欧洲数百万人死亡。