ArticleJournal of clinical microbiology2007
Molecular epidemiology and distribution of serotypes, surface proteins, and antibiotic resistance among group B streptococci in Italy.
Article in Journal of clinical microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.
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Who cites it
72 citing papers in PubMed.
- Endolysin EN572-5 as an alternative to treat urinary tract infection caused by Streptococcus agalactiae.Applied microbiology and biotechnology · 2024Article
- Review
- 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
- Antimicrobial Resistance Profile of Group BMicroorganisms · 2024Article
- Macrolide and lincosamide resistance of Streptococcus agalactiae in pregnant women in Poland.Scientific reports · 2024Article
- Genotype Distribution and High-Risk Factors Analysis of Group B Streptococcus in Late-Stage Pregnant Women in the Linyi Region.International journal of microbiology · 2024Article
- Group B streptococcus virulence factors associated with different clinical syndromes: Asymptomatic carriage in pregnant women and early-onset disease in the newborn.Frontiers in microbiology · 2023Article
- Characteristics ofIranian journal of basic medical sciences · 2023Article
- Characterization of Group B Streptococcus Recovered from Pregnant Women and Newborns Attending in a Hospital in Beijing, China.Infection and drug resistance · 2023Article
- Molecular Epidemiology of Group B Streptococcus Colonization in Egyptian Women.Microorganisms · 2022Article
- Genetic diversity and antimicrobial resistance of invasive, noninvasive and colonizing group BAccess microbiology · 2022Article
- Molecular Characteristic, Antibiotic Resistance, and Detection of Highly Immunoreactive Proteins of Group B Streptococcus Strains Isolated From Urinary Tract Infections in Polish Adults.Frontiers in 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
- Research Advances on Tilapia Streptococcosis.Pathogens (Basel, Switzerland) · 2021Review
- 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
- Distribution of Pilus island and antibiotic resistance genes inIranian journal of microbiology · 2020Article
- Increasing Resistance and Changes in Distribution of Serotypes ofPathogens (Basel, Switzerland) · 2020Article
- Antimicrobial profile of multidrug-resistantJournal of advanced veterinary and animal research · 2020Article
12 more citing papers are in PubMed but not listed here.
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9 authors.
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Abstract
Group B streptococci (GBS) comprising three different sets of isolates (31 invasive, 36 noninvasive, and 24 colonizing isolates) were collected in Italy during the years 2002 to 2005. Clonal groups were established by pulsed-field gel electrophoresis (PFGE), and selected isolates were studied by multilocus sequence typing (MLST). GBS isolates were also characterized by classical and molecular techniques for serotyping and protein gene and antibiotic resistance profiling. Some serotypes were significantly associated with a particular isolate population: serotype Ia more frequently corresponded to invasive strains than other strains, serotype V was more frequently encountered among noninvasive strains, and nontypeable strains were more common among isolates from carriers. Four major clonal groups accounted for 52.7% of all isolates: PFGE type 1/clonal complex 1 (CC1) comprised mainly serotype V isolates carrying the alp3 gene, PFGE type 2/CC23 encompassed serotype Ia isolates with the alp1 or alpha gene, PFGE type 3/CC17 comprised serotype III isolates carrying the rib gene, and PFGE type 4/CC19 consisted mainly of serotype II isolates possessing the rib gene. The same serotypes were shared by isolates of different clonal groups, and conversely, isolates belonging to the same clonal groups were found to be of different serotypes, presumably due to capsular switching by the horizontal transfer of capsular genes. Erythromycin resistance (prevalence, 16.5%; 15 resistant isolates of 91) was restricted to strains isolated from patients with noninvasive infections and carriers, while tetracycline resistance was evenly distributed (prevalence, 68.1%; 62 resistant isolates of 91). Most erythromycin-resistant GBS strains were of serotype V, were erm(B) positive, and belonged to the PFGE type 1/CC1 group, suggesting that macrolide resistance may have arisen both by clonal dissemination and by the horizontal transfer of resistance genes.
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