新生儿B族链球菌(GBS)感染分早发及迟发两型。前者发生在7天内,多表现为败血症或肺炎;后者发生在8天后,表现为败血症或脑脊膜炎。新生儿GBS感染症病情严重、进展迅速。为减少患儿死亡率及预后不良的发生率,预防性治疗及早期诊断非常重要。母儿垂直感染是本症的主要致病原因,故于分娩前检查孕妇有无GBS感染以预防之。 Neonatal B streptococcal (GBS) infection in early onset and delayed type two. The former occurred in 7 days, the performance of sepsis or pneumonia; the latter occurred in 8 days, the performance of sepsis or meningitis. Neonatal GBS infection is exacerbated and progressing rapidly. To reduce the incidence of infant mortality and poor prognosis, preventive treatment and early diagnosis is very important. Mother and child vertical infection is the main cause of this disease, it is checked before delivery whether pregnant women with GBS infection to prevent it.