s. caused by infection or capable of causing infection
a. easily spread; children catch it from their elders"- Bertrand Russell
a. of or relating to infection
a. 有传染性的, 易传染的
[医] 传染性的
1. The flu is an infectious disease that spreads easily from person to person.
流感是一种容易在人与人之间传播的传染病。
2. It is important to wash your hands to prevent infectious illnesses.
洗手很重要，可以预防传染性疾病。
3. Some infectious diseases can be prevented with vaccines.
一些传染病可以通过疫苗预防。