1. Rubella is a contagious viral disease that can cause a rash and flu-like symptoms.
风疹是一种传染性病毒性疾病，可以引起皮疹和类似流感的症状。
2. It is important for pregnant women to be vaccinated against rubella to protect their babies.
孕妇接种风疹疫苗对保护其宝宝是非常重要的。