ArticleJournal of clinical microbiology2010
Phenotypic and genotypic characterization of group B streptococcal isolates in southern Brazil.
Article in Journal of clinical microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed.
- Streptococcus agalactiae carriage among pregnant women living in Rio de Janeiro, Brazil, over a period of eight years.PloS one · 2018Trial
- Unveiling the genetic landscape of Streptococcus agalactiae bacteremia: emergence of hypervirulent CC1 strains and new CC283 strains in Tehran, Iran.BMC microbiology · 2024Article
- Vertical Transmission of Group BInternational journal of microbiology · 2024Article
- Characteristics ofIranian journal of basic medical sciences · 2023Article
- Genetic diversity and antimicrobial resistance of invasive, noninvasive and colonizing group BAccess microbiology · 2022Article
- Antimicrobial Resistance Profile and Associated Factors of Group B Streptococci Colonization among Pregnant Women Attending Antenatal Clinics in Jigjiga, Southeast Ethiopia.International journal of microbiology · 2022Article
- Antimicrobial Resistance among Beta-HemolyticAntibiotics (Basel, Switzerland) · 2021Review
- Prevalence of Group B Streptococcus in Vagina and Rectum of Pregnant Women of Islamic & Non-Islamic Countries: A Systematic Review and Meta-Analysis.Iranian journal of public health · 2021Review
- Streptococcus agalactiae strains isolated from cancer patients in Rio de Janeiro, Brazil.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2021Article
- Article
- Antimicrobial profile of multidrug-resistantJournal of advanced veterinary and animal research · 2020Article
- Streptococcus agalactiae in pregnant women in Brazil: prevalence, serotypes, and antibiotic resistance.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2019Review
- Prevalence of group B streptococcus colonization in Iranian pregnant women: A systematic review and meta-analysis.International journal of reproductive biomedicine · 2018Review
- Serotype IV Streptococcus agalactiae ST-452 has arisen from large genomic recombination events between CC23 and the hypervirulent CC17 lineages.Scientific reports · 2016Article
- Associations between nasopharyngeal carriage of Group B Streptococcus and other respiratory pathogens during early infancy.BMC microbiology · 2016Article
- Emergence of Serotype IV Group B Streptococcus Adult Invasive Disease in Manitoba and Saskatchewan, Canada, Is Driven by Clonal Sequence Type 459 Strains.Journal of clinical microbiology · 2015Article
- Population structure and antimicrobial resistance of invasive serotype IV group B Streptococcus, Toronto, Ontario, Canada.Emerging infectious diseases · 2015Article
- Antimicrobial susceptibility profiles, serotype distribution and virulence determinants among invasive, non-invasive and colonizing Streptococcus agalactiae (group B streptococcus) from Malaysian patients.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2015Article
- Effect of Eugenol against Streptococcus agalactiae and Synergistic Interaction with Biologically Produced Silver Nanoparticles.Evidence-based complementary and alternative medicine : eCAM · 2015Article
- Article
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Authors and funding
10 authors.
Funding
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Abstract
One-hundred sixty-eight group B streptococcal (GBS) isolates from a Brazilian hospital were phenotypically and genotypically characterized. Isolates were recovered from human sources from April 2006 to May 2008 and classified as either invasive, noninvasive, or colonizing isolates. Classical methods for serotyping and antibiotic resistance profiling were employed. Clonal groups were also defined by pulsed-field gel electrophoresis (PFGE). Results showed that susceptibility to beta-lactam antimicrobials was predominant among the isolates. Only 4.7% were resistant to erythromycin and clindamycin. The erm(B) gene was widely detected in our GBS isolates, according to our phenotypic results (constitutive macrolide-lincosamide-streptogramin B [cMLSB] resistance phenotype), and the erm(A) gene was also detected in some isolates. MLSB resistance was restricted to strains isolated from patients with noninvasive infections and carriers. Serotype Ia was predominant (38.1%), serotype IV isolates were found at a high frequency (13.1%), and few isolates of serotype III were identified (3%). Pulsed-field gel electrophoresis results revealed a variety of types, reflecting the substantial genetic diversity among GBS strains, although a great number of isolates could be clustered into two major groups with a high degree of genetic relatedness. Three main PFGE clonal groups were found, and isolates sharing the same PFGE type were grouped into different serotypes. Furthermore, in a few cases, isolates from the same patients and possessing the same PFGE type were of different serotypes. These findings could be related to the occurrence of capsular switching by horizontal transfer of capsular genes.
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