ArticleEuropean journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology2020
Emergence of vancomycin-resistant Enterococcus faecium ST1421 lacking the pstS gene in Korea.
Article in European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 19 citations in OpenAlex.
- A new approach for establishing multilocus sequence typing scheme: Staphylococcus capitis as an example.BMC microbiology · 2025Article
- Prevalence of Vancomycin-Variable Enterococci from the Bloodstream in the Korea Global Antibiotic Resistance Surveillance System, 2017-2022.Antibiotics (Basel, Switzerland) · 2024Article
- Fitness costs of Tn1546-type transposons harboring the vanA operon by plasmid type and structural diversity in Enterococcus faecium.Annals of clinical microbiology and antimicrobials · 2024Article
- Surveillance of vancomycin-resistant enterococci reveals shift in dominating clusters fromEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2024Article
- Genetic analysis of vancomycin-variable Enterococcus faecium clinical isolates in Italy.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2024Article
- Vancomycin-resistantMicrobiology spectrum · 2024Article
- An Economic Evaluation Estimating the Clinical and Economic Burden of Increased Vancomycin-Resistant Enterococcus faecium Infection Incidence in Japan.Infectious diseases and therapy · 2023Article
- Interhospital transmission of vancomycin-resistant Enterococcus faecium in Aomori, Japan.Antimicrobial resistance and infection control · 2022Article
- Centre-specific bacterial pathogen typing affects infection-control decision making.Microbial genomics · 2021Article
- The Role of Whole Genome Sequencing in the Surveillance of Antimicrobial ResistantFrontiers in public health · 2021Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Although multilocus sequence typing (MLST) has been used to study molecular epidemiology and to explore the population structure of Enterococcus faecium, vancomycin-resistant E. faecium (VREF) strains lacking the pstS gene that were non-typable using conventional MLST methods were reported recently. We found nationwide emergence of VREF isolates lacking pstS in Korea and hereby report the molecular characteristics of these isolates. Forty-six VREF isolates lacking the pstS gene were identified among 300 VREF rectal isolates collected from hospitalized patients between 2014 and 2015. MLST was performed and clonal relatedness was determined by pulsed-field gel electrophoresis (PFGE). Four VREF ST1421 isolates were whole-genome sequenced. Among the VREF rectal isolates lacking pstS, 98% were classified as ST1421, which has identical allelic profiles to ST17 for all housekeeping genes except pstS. PFGE pattern analyses revealed 32 pulsotypes. All isolates harbored Tn1546 components with various transposase and insertion sequences. The whole-genome sequencing of four VREF ST1421 isolates showed that the pstS gene region was deleted at various locations with considerable inversion. The pstS gene was also depleted in 12.1% of 33 VREF clinical isolates in 2006-2007 and in 11.8% of 59 clinical isolates in 2012-2013. VREF ST1421 strains lacking the pstS gene have emerged in Korea. The emergence and spread of pstS-deleted VREF strains pose a serious challenge for epidemiological investigation. Alternative molecular typing methods to MLST will be increasingly necessary.
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