ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]2013
Phenotypic and genotypic characterization of Streptococcus agalactiae in pregnant women. First study in a province of Argentina.
Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 37 citations in OpenAlex.
- CRISPR1-mediated virulence and erythromycin resistance stabilization drives regional dominance ofFrontiers in cellular and infection microbiology · 2026Article
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- Distribution and Prevalence of Serotypes of Group BMaternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2023Article
- Virulence Profiles and Antimicrobial Resistance of Streptococcus agalactiae Infective and Colonizing Strains from Argentina.Current microbiology · 2022Article
- Streptococcus agalactiae strains isolated from cancer patients in Rio de Janeiro, Brazil.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2021Article
- Analysis of virulence factors and antibiotic resistance genes in group B streptococcus from clinical samples.BMC infectious diseases · 2021Article
- Prevalence, serotypes and virulence genes of Streptococcus agalactiae isolated from pregnant women with 35-37 weeks of gestation.BMC infectious diseases · 2021Article
- Clonal Distribution of Clindamycin-Resistant Erythromycin-Susceptible (CRES) Streptococcus agalactiae in Korea Based on Whole Genome Sequences.Annals of laboratory medicine · 2020Article
- Group BMicrobiology spectrum · 2019Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Group B Streptococcus (GBS) is the leading cause of neonatal infections. Our purpose was to characterize GBS colonization in pregnant women, current serotypes, resistance phenotypes and genes associated with virulence. In Misiones, Argentina, there are no previous data on this topic. Vaginal-rectal swabs from 3125 pregnant women were studied between 2004 and 2010. GBS strains were identified by conventional and serological methods (Phadebact Strep B Test, ETC International, Bactus AB, Sweden). Serotypes were detected using Strep-B Latex (Statens Serum Institut, Denmark). Resistance phenotypes were determined by the double-disk test. Genes were studied by PCR. Maternal colonization was 9.38%. Resistance to erythromycin was 11.6%, and the constitutive phenotype was the predominant one. Serotype Ia was the most frequent, whereas serotypes IV, VI, VII and VIII were not detected. The lmb, bca and hylB genes were detected in more than 79% of the strains. In this study, the colonization rate with GBS and the serotype distribution were compared with studies reported in other areas of the country. The high resistance to erythromycin in Misiones justifies performing antibiotic susceptibility testing. The serotype distribution, the genes encoding putative virulence factors, and the patterns of resistance phenotypes of GBS may vary in different areas. They thus need to be evaluated in each place to devise strategies for prevention.
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