B族链球菌(GBS)不仅可使孕母患子宫内膜炎及败血症,而且可导致胎儿的宫内感染及围生儿肺透明膜病、败血症和脑膜炎,是围生儿的主要死亡原因。产妇及新生儿的GBS带菌率国外报道为5％～35％,我国为13％。本文就其相关问题予以综述。1 传播途径 一般认为围生期婴儿GBS感染主要通过母婴垂直传播及分娩过程中与其母生殖道接触而引起;生 Group B Streptococcus (GBS) not only allows endometritis and septicemia in pregnant women, but also causes fetal intrauterine infection and perinatal hyaline membrane disease, sepsis and meningitis, which are the major causes of death in perinatal infants . GBS carrier rate of mothers and newborns abroad reported 5% to 35%, China 13%. This article reviews its related issues. 1 route of transmission It is generally believed that perinatal GBS infection mainly through vertical transmission of mother and baby and childbirth during contact with the mother’s reproductive tract caused; students