Incidence rate of invasive GBS disease (no. cases/1,000 live births) among infants <3 months of age, China, 2015–2017. A) Incidence by study hospital. B) Incidence by region. Error bars indicate 95% CIs. BJ, Tsinghua University Hospital; CQ, Chongqing Health Center for Women and Children; CS, Changsha Hospital for Maternal and Child Health; EOD, early-onset disease; GBS, invasive group B Streptococcus; GD, Guangdong Women and Children’s Hospital; GX, The Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; GZ, Guangzhou Women and Children’s Medical Center; HB, Hubei Maternal and Child Health Hospital; HY, The First Affiliated Hospital, Harbin Medical University; LOD, late-onset disease; NJ, Nanjing Maternity and Child Health Care Hospital; NX, General Hospital of Ningxia Medical University; SH, Children’s Hospital of Fudan University; SY, Shengjing Hospital, China Medical University; TJ, Tianjin Central Hospital of Gynecology Obstetrics; TS, Tangshan Maternal and Child Health Care Hospital; XJ, Maternal and Child Health Care Hospital of Uygur Autonomous Region; XJ1, The First Affiliated Hospital of Xi’an Jiaotong University; XJ2, The Second Affiliated Hospital of Xi’an Jiaotong University; ZJ, Women’s Hospital, Zhejiang University