Group B streptococcal disease in the mother and newborn-A review

Eur J Obstet Gynecol Reprod Biol. 2020 Sep;252:526-533. doi: 10.1016/j.ejogrb.2020.06.024. Epub 2020 Jun 15.


Group B Streptococcus, a common commensal in the gut of humans and in the lower genital tract in women, remains an important cause of neonatal mortality and morbidity. The incidence of early onset disease has fallen markedly in countries that test women for carriage at 35-37 weeks of pregnancy and then offer intrapartum prophylaxis with penicillin during labour. Countries that do not test, but instead employ a risk factor approach, have not seen a similar fall. There are concerns about the effect on the neonatal microbiome of widespread use of antibiotic prophylaxis during labour, but so far the effects seem minor and temporary. Vaccination against GBS would be acceptable to most women and GBS vaccines are in the early stages of development. Tweetable abstract: Group B Strep is a key cause of infection, death and disability in young babies. Antibiotics given in labour remain the mainstay of prevention, until a vaccine is available.

Keywords: Antibiotic prophylaxis; GBS; Group B streptococcus; Microbiome; Vaccine.

MeSH terms

  • Anti-Bacterial Agents / therapeutic use
  • Antibiotic Prophylaxis
  • Female
  • Humans
  • Infant, Newborn
  • Infectious Disease Transmission, Vertical / prevention & control
  • Mothers
  • Pregnancy
  • Pregnancy Complications, Infectious* / drug therapy
  • Pregnancy Complications, Infectious* / epidemiology
  • Pregnancy Complications, Infectious* / prevention & control
  • Streptococcal Infections* / drug therapy
  • Streptococcal Infections* / epidemiology
  • Streptococcal Infections* / prevention & control
  • Streptococcus agalactiae


  • Anti-Bacterial Agents