ArticleTherapeutic advances in infectious disease
Prevalence, risk factors, and serotypes of group B
Article in Therapeutic advances in infectious disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Systematic Review and Meta-analysis of Group B Streptococcus Rectovaginal Colonization Rates and Serotype Distribution among Pregnant Women, Asia-Pacific Region, 2014-2025.Emerging infectious diseases · 2026Pooled it
- Maternal body mass index and the risk of early-onset Group B Streptococcus disease in newborns: A systematic review and meta-analysis.PloS one · 2026Pooled it
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Group B Objectives: To determine the prevalence, potential risk factors, and serotype distribution of GBS isolates isolated from rectovaginal specimens of Vietnamese pregnant women. Design: Cross-sectional study. Methods: A cross-sectional study was conducted at three hospitals in Hanoi City, Vietnam, from October 2021 to May 2022. Combined rectovaginal swabs were collected from pregnant women at 35-37 weeks of gestation. GBS was isolated from swabs using selective enrichment in Todd-Hewitt broth and cultured on Columbia agar plates with 5% sheep blood, and Chromogenic Strepto B. All isolates were confirmed through the Gram staining, the CAMP test, and specific Polymerase Chain Reaction (PCR). GBS serotyping was performed by using the multiplex PCR assays. Risk factors for GBS carriage were analyzed using univariate and multivariate logistic regression tools. Results: The prevalence of rectovaginal GBS carriage was 19.52% of 876 participants. Multivariate analysis identified two independent risk factors associated with GBS colonization: a high level of education and yellow vaginal discharge. Among these isolates, serotype III ( Conclusion: The GBS colonization rate in pregnant women was consistent with findings from other studies worldwide. Higher educational attainment and the presence of yellow vaginal discharge were independently associated with an increased risk of GBS colonization. The predominance of GBS serotypes III, V, and VI was a notable feature among the strains isolated from pregnant women in Vietnam.
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