ArticlePloS one2015
Serotypes, antibiotic susceptibilities, and multi-locus sequence type profiles of Streptococcus agalactiae isolates circulating in Beijing, China.
Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 3 of them syntheses that pooled it.
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Who cites it
47 citing papers in PubMed, 3 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
- Global trends in macrolide and lincosamide resistance in Streptococcus species: a comprehensive systematic review and meta-analysis.BMC infectious diseases · 2025Pooled it
- Global patterns of antibiotic resistance in group BFrontiers in microbiology · 2025Pooled it
- Combined effects of bacterial vaginal colonization and HIV on pregnancy outcomes: A Systematic Review and Meta-analysis.Research square · 2026Article
- Serotypes and antibiotic resistance patterns of group B streptococci isolated from pregnant women at Urmia University Hospital, Iran.Iranian journal of microbiology · 2025Article
- High prevalence of penicillin-resistant group B Streptococcus among pregnant women in Northwest Ethiopia.Scientific reports · 2025Article
- Streptococcus agalactiae colonization is common among pregnant women with HIV infection and is neither predicted by hospital tier nor trimester in Mwanza, Tanzania.BMC pregnancy and childbirth · 2025Article
- Molecular Epidemiology of Invasive Group B Streptococcus in South Africa, 2019-2020.The Journal of infectious diseases · 2025Article
- Molecular epidemiology and antibiotic resistance of group BFrontiers in cellular and infection microbiology · 2025Article
- Prevalence and Antibiotic Resistance ofLife (Basel, Switzerland) · 2024Article
- Performance Evaluation of NovaplexMicroorganisms · 2024Article
- Group B Streptococcus Infections in Non-Pregnant Adults, Italy, 2015-2019.Pathogens (Basel, Switzerland) · 2024Article
- Macrolide and lincosamide resistance of Streptococcus agalactiae in pregnant women in Poland.Scientific reports · 2024Article
- Distribution and Prevalence of Serotypes of Group BMaternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2023Article
- Molecular Epidemiology of Group BInfection and drug resistance · 2023Article
- Severe problem of macrolides resistance to common pathogens in China.Frontiers in cellular and infection microbiology · 2023Review
- Antimicrobial Resistance and Virulence Genes ofJournal of veterinary research · 2022Article
- Maternal Group B Streptococcal Rectovaginal Colonization after Intrapartum Antibiotic Prophylaxis.Children (Basel, Switzerland) · 2022Article
- Molecular characterization and antimicrobial resistance ofIJID regions · 2022Article
- An Initial Survey on the Prevalence of Group BInfectious diseases in obstetrics and gynecology · 2022Article
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10 authors.
Funding
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Abstract
backgroundTo investigate the serotypes, antibiotic susceptibilities, and multi-locus sequence type (MLST) profiles of Streptococcus agalactiae (S. agalactiae) in Beijing to provide references for the prevention and treatment of S. agalactiae infections.
methodsAll isolates were identified using the CAMP test and the latex-agglutination assay and serotyped using a Strep-B-Latex kit, after which they were assessed for antibiotic susceptibility, macrolide-resistance genes, and MLST profiles.
resultsIn total, 56 S. agalactiae isolates were identified in 863 pregnant women (6.5%). Serotypes Ia, Ib, II, III, and V were identified, among which types III (32.1%), Ia (17.9%), Ib (16.1%), and V (14.3%) were the predominant serotypes. All isolates were susceptible to penicillin and ceftriaxone. The nonsusceptiblity rates measured for erythromycin, clarithromycin, azithromycin, telithromycin, clindamycin, tetracycline, and levofloxacin were 85.7%, 92.9%, 98.2%, 30.4%, 73.2%, 91%, and 39.3%, respectively. We identified 14 sequence types (STs) for the 56 isolates, among which ST19 (30.4%) was predominant. The rate of fluoroquinolone resistance was higher in serotype III than in the other serotypes. Among the 44 erythromycin-resistant isolates, 32 (72.7%) carried ermB.
conclusionS. agalactiae isolates of the serotypes Ia, Ib, III, and V are common in Beijing. Among the S. agalactiae isolates, the macrolide and clindamycin resistance rates are extremely high. Most of the erythromycin-resistant isolates carry ermB.
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