ArticleJournal of clinical microbiology2011
International external quality assurance for laboratory identification and typing of Streptococcus agalactiae (Group B streptococci).
Article in Journal of clinical microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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Who cites it
38 citing papers in PubMed.
- A Phase 2b Trial Evaluating the Safety, Tolerability, and Immunogenicity of a 6-Valent Group B Streptococcus Vaccine Administered Concomitantly With Tetanus, Diphtheria, and Acellular Pertussis Vaccine in Healthy Nonpregnant Female Individuals.The Journal of infectious diseases · 2025Trial
- Facing Antimicrobial Resistance and Virulence in Streptococcus agalactiae During Late Pregnancy: Evaluation of Lactobacilli as a Supportive Approach.MicrobiologyOpen · 2026Article
- Maternal Streptococcus agalactiae colonization in Europe: data from the multi-center DEVANI study.Infection · 2025Article
- Group B Streptococcus Infections in Non-Pregnant Adults, Italy, 2015-2019.Pathogens (Basel, Switzerland) · 2024Article
- Emergence of High-Level Gentamicin Resistance inAntibiotics (Basel, Switzerland) · 2024Article
- An opportunistic pathogen under stress: how Group B Streptococcus responds to cytotoxic reactive species and conditions of metal ion imbalance to survive.FEMS microbiology reviews · 2024Review
- Neonatal invasive disease caused by Streptococcus agalactiae in Europe: the DEVANI multi-center study.Infection · 2023Article
- Calibration of a serum reference standard for Group B streptococcal polysaccharide conjugate vaccine development using surface plasmon resonance.NPJ vaccines · 2023Article
- Estimation of invasive Group B Streptococcus disease risk in young infants from case-control serological studies.BMC medical research methodology · 2022Article
- Article
- Assessing the added value of group B Streptococcus maternal immunisation in preventing maternal infection and fetal harm: population surveillance study.BJOG : an international journal of obstetrics and gynaecology · 2022Article
- Invasive Group B Streptococcal Disease in Neonates and Infants, Italy, Years 2015-2019.Microorganisms · 2021Article
- Prevalence, serotypes and virulence genes of Streptococcus agalactiae isolated from pregnant women with 35-37 weeks of gestation.BMC infectious diseases · 2021Article
- Streptococcus agalactiae in pregnant women: serotype and antimicrobial susceptibility patterns over five years in Eastern Sicily (Italy).European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020Article
- Streptococcus suis in Swedish grower pigs: occurrence, serotypes, and antimicrobial susceptibility.Acta veterinaria Scandinavica · 2020Article
- Determination of surface proteins profile, capsular genotyping, and antibiotic susceptibility patterns of Group B Streptococcus isolated from urinary tract infection of Iranian patients.BMC research notes · 2019Article
- Prevalence, Risk Factors, and Serotype Distribution of Group B Streptococcus Colonization in HIV-Infected Pregnant Women Living in Belgium: A Prospective Cohort Study.Open forum infectious diseases · 2018Article
- Phenotypic and molecular analysis of nontypeable Group B streptococci: identification of cps2a and hybrid cps2a/cps5 Group B streptococcal capsule gene clusters.Emerging microbes & infections · 2018Article
- Group BFrontiers in public health · 2018Article
- External Quality Assurance for Laboratory Identification and Capsular Typing of Streptococcus pneumoniae.Scientific reports · 2017Article
Corrections and comments
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Authors and funding
19 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We report the results from the first international multicenter external quality assessment (EQA) studies for molecular and serological typing of group B streptococcus (GBS) strains as part of DEVANI (Design of a Vaccine against Neonatal Infections), a pan-European program. A questionnaire-based surveillance was undertaken among eight laboratories participating in DEVANI and six laboratories not participating in DEVANI from 13 countries in order to assess their current microbiological procedures for GBS screening, diagnosis, and typing. GBS strains from three EQA distributions were characterized using molecular and serological methods based on GBS capsular polysaccharide typing. Participants were asked to test the first distribution using their current serotyping and genotyping methods. The Strep-B-Latex agglutination method was the most widely used method, with a typeability value of >90%. A multiplex PCR assay for GBS capsular gene typing was also used by 2 of 14 centers, which achieved a typeability value of 93%; this assay detected only 9 of 10 GBS capsular polysaccharide genes. From the second and third EQA studies, standardized protocols were prepared for serological and molecular typing of GBS strains based on the Strep-B-Latex agglutination method and a novel multiplex PCR assay that detected all 10 GBS capsular types (Ia to IX). These standardized protocols are being used by many European laboratories, and as the use of these methods increases, it is imperative to continuously improve and assess laboratory performance and offer training to any laboratories that have technical difficulties.
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