Rubella: a mild, contagious, eruptive disease caused by a virus and capable of producing congenital defects in infants born to mothers infected during the first three months of pregnancy.

• 风疹,一种由病毒引起的轻微传染性发疹的疾病,若孕妇怀孕的前三个月内受到传染会给婴儿造成先天性的缺陷。