contagious infection

例句：

1. 1.The doctor warned us about the contagious infection that could spread quickly.
   医生警告我们关于一种可以迅速传播的传染病感染。
2. 2.The patient was diagnosed with a contagious infection and needed to isolate himself.
   病人被诊断出患有一种传染病感染，需要隔离自己。
3. 3. The outbreak of the contagious infection has caused widespread panic in the community.
   这种传染病感染的爆发在社区引起了广泛的恐慌。