Missed opportunities for preventing group B streptococcus infection

Area of Science:

• Neonatal infections
• Bacterial pathogenesis
• Public health surveillance

Background:

• Group B Streptococcus (GBS) is a leading cause of early-onset neonatal infection in the UK.
• National guidelines for GBS prevention were implemented in 2003.
• The Neonatal Infection Surveillance Network (NeonIN) facilitates GBS case assessment.

Purpose of the Study:

• To evaluate prevention opportunities for early-onset GBS infections.
• To analyze risk factors and intrapartum antibiotic prophylaxis (IAP) use in GBS cases.
• To estimate the potential impact of universal IAP on GBS incidence.

Main Methods:

• Prospective identification of culture-proven early-onset GBS cases (2004-2007) across eight NeonIN units.
• Retrospective data collection on risk factors, IAP administration, and infant outcomes.
• Analysis of GBS incidence and attributable mortality.

Main Results:

• 48 GBS cases were identified (0.52/1000 live births), with sepsis as the most common presentation.
• GBS-attributable mortality was 6%; 67% of cases had identifiable risk factors.
• Adequate IAP was administered to only 19% of mothers with risk factors; 48% of cases could potentially be prevented with universal prophylaxis.

Conclusions:

• Current GBS prevention strategies in the UK require enhancement.
• Increased utilization of intrapartum antibiotic prophylaxis is crucial for reducing neonatal GBS infections.
• Further research and policy changes are needed to optimize GBS prevention.