ArticleEuropean journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology2012
Phenotypes, genotypes, serotypes and molecular epidemiology of erythromycin-resistant Streptococcus agalactiae in Italy.
Article in European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 37 citations in OpenAlex.
- Streptococcus agalactiae carriage among pregnant women living in Rio de Janeiro, Brazil, over a period of eight years.PloS one · 2018Trial
- High prevalence of penicillin-resistant group B Streptococcus among pregnant women in Northwest Ethiopia.Scientific reports · 2025Article
- Screening of Group BOpen medicine (Warsaw, Poland) · 2025Review
- Molecular epidemiology of Acinetobacter baumannii during COVID-19 at a hospital in northern China.Annals of clinical microbiology and antimicrobials · 2024Article
- Antimicrobial Resistance Profile of Group BMicroorganisms · 2024Article
- Molecular Epidemiology of Group B Streptococcus Colonization in Egyptian Women.Microorganisms · 2022Article
- In Vitro Pharmacodynamics and Bactericidal Mechanism of Fungal Defensin-Derived Peptides NZX and P2 againstMicroorganisms · 2022Article
- Comparative Analysis of Human and Animal E. coli: Serotyping, Antimicrobial Resistance, and Virulence Gene ProfilingAntibiotics (Basel, Switzerland) · 2022Article
- Macrolide-resistance, capsular genotyping and associated factors of group B Streptococci colonized pregnant women in Isfahan, Iran.Iranian journal of microbiology · 2021Article
- Evidence of Common Isolates ofFrontiers in microbiology · 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
- Evaluation of the Results of Group B Streptococcus Screening by MALDI-TOF MS among Pregnant Women in a Hungarian Hospital.Pathogens (Basel, Switzerland) · 2019Article
- High Incidence of PathogenicFrontiers in microbiology · 2018Article
- Streptococcus agalactiae from pregnant women: antibiotic and heavy-metal resistance mechanisms and molecular typing.Epidemiology and infection · 2016Article
- Molecular Characterization of Streptococcus agalactiae Isolates From Pregnant and Non-Pregnant Women at Yazd University Hospital, Iran.Jundishapur journal of microbiology · 2016Article
- Molecular Characterization of Streptococcus agalactiae Causing Community- and Hospital-Acquired Infections in Shanghai, China.Frontiers in microbiology · 2016Article
- Molecular epidemiology and distribution of serotypes, genotypes, and antibiotic resistance genes of Streptococcus agalactiae clinical isolates from Guelma, Algeria and Marseille, France.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2015Article
- Distribution of pilus islands and alpha-like protein genes of group B Streptococcus colonized in pregnant women in Beijing, China.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2015Article
- Emergence of the first levofloxacin-resistant strains of Streptococcus agalactiae isolated in Italy.Antimicrobial agents and chemotherapy · 2015Article
- Streptococcus agalactiae clones infecting humans were selected and fixed through the extensive use of tetracycline.Nature communications · 2014Article
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4 authors at 1 institution in 1 country.
Funding
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Abstract
The purpose of this investigation was to analyse Streptococcus agalactiae (group B Streptococcus, GBS) isolates collected in Italy from vaginal and urine samples in respect to their clonality, distribution of virulence factors and antimicrobial resistance determinants. Three hundred and eighty-eight GBS were recovered from clinical samples. They were analysed for antibiotic resistance profiling. Erythromycin-resistant strains were further characterised by multilocus sequence typing (MLST), serotyping and the detection of alp genes of the alpha-like protein (Alp) family. GBS isolates represented 40 different sequence types (STs), grouped in five clonal complexes (CCs) and belonged to seven serotypes. Most serotype V strains (81%) possessed alp2-3; serotype Ia carried mainly epsilon, while the serotype III mainly rib. All isolates were susceptible to penicillin, whereas resistance to erythromycin was detected in 15% of isolates. Most erythromycin-resistant GBS strains were of serotype V (56.8%) and belonged to the CC-1 group (50%). Macrolide resistance phenotypes were the cMLS(B) (46.5%) and the M phenotypes (46.5%) due to the presence of ermB and mefA/E genes, respectively. These results provide data which establish a baseline for monitoring erythromycin resistance in this region and also provide an insight into the correlation among clonal types, serotypes, surface protein and resistance genes. The increased prevalence of strains that displayed the M phenotype strengthens the importance of the epidemiological surveillance of macrolide resistance in GBS, which may also represent an important reservoir of resistance genes for other species.
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