Systematic Review and Meta-analysis of Group B Streptococcus Rectovaginal Colonization Rates and Serotype Distribution among Pregnant Women, Asia-Pacific Region, 2014-2025.
Emerg Infect DisOct 1, 2026
Clinical ResearchObstetrics & Gynecology
Zheng Quan Toh, Lien Anh Ha Do, Darren Suryawijaya Ong et al.
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In 30 seconds
This systematic review and meta-analysis examined group B Streptococcus (GBS) rectovaginal colonization rates among 978,150 pregnant women in the Asia-Pacific region. The study found a pooled prevalence of 18.0% (95% CI 12%-23%) for GBS colonization. A total of 98 studies were included in the analysis, highlighting the need for ongoing surveillance in this population.
Key findings
- The pooled estimated prevalence of GBS colonization was 18.0% (95% CI 12%-23%).
- Serotype III was the most common GBS serotype, with a range of 5.0%-100.0%.
- Low antimicrobial drug resistance rates (0%-2.0%) were found for β-lactams.
Why it matters
Understanding GBS colonization rates and serotype distribution is crucial for developing effective prevention and treatment strategies in pregnant women, particularly in regions with limited data.