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Updated: Jul 4, 2025

A Murine Model of Group B Streptococcus Vaginal Colonization
Published on: November 16, 2016
Neonatal Group B Streptococcus Disease
Sarah A Coggins1,2,3, Karen M Puopolo1,2,3
1Division of Neonatology and.
Insights
Group B Streptococcus (GBS) causes neonatal sepsis, but prevention strategies like screening and antibiotics have reduced cases. Continued vigilance is needed as GBS disease persists, impacting infant health.
Area of Science:
- Neonatal health
- Infectious disease epidemiology
- Microbial pathogenesis
Background:
- Group B Streptococcus (GBS) is a leading cause of sepsis in newborns.
- Vertical transmission from mother to infant during birth is a primary concern.
- Current prevention strategies include antepartum screening and intrapartum antibiotic prophylaxis.
Approach:
- Reviewing contemporary epidemiology and pathogenesis of neonatal GBS disease.
- Summarizing obstetric recommendations for antenatal screening and intrapartum antibiotic prophylaxis.
- Examining antibiotic selection and national guidelines for infant risk assessment and management.
Key Points:
- Despite prevention efforts, neonatal GBS disease remains a significant threat, causing mortality and morbidity.
- Antenatal GBS screening and intrapartum antibiotic prophylaxis have decreased GBS disease incidence.
- Understanding GBS epidemiology, pathogenesis, and clinical presentation is crucial for effective management.
Conclusions:
- Neonatal GBS disease prevention requires ongoing adherence to screening and prophylaxis guidelines.
- Effective management involves careful risk assessment and timely intervention for at-risk infants.
- Further research may elucidate novel strategies to combat persistent GBS infections.
Abstract:
Group B Streptococcus (GBS) is an important cause of neonatal sepsis in term and preterm infants. Because GBS colonizes human genitourinary and gastrointestinal tracts, a significant focus of neonatal GBS disease prevention is to interrupt vertical transmission of GBS from mother to infant during parturition. Routine antepartum GBS screening in pregnant women, as well as widespread use of intrapartum antibiotic prophylaxis, have aided in overall reductions in neonatal GBS disease during the past 3 decades. However, neonatal GBS disease persists and may cause mortality and significant short- and long-term morbidity among survivors. Herein, we highlight contemporary epidemiology, microbial pathogenesis, and the clinical presentation spectrum associated with neonatal GBS disease. We summarize obstetric recommendations for antenatal GBS screening, indications for intrapartum antibiotic prophylaxis, and considerations for antibiotic selection. Finally, we review national guidelines for risk assessment and management of infants at risk for GBS disease.
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