ArticleAntimicrobial agents and chemotherapy2015
Variation in resistance traits, phylogenetic backgrounds, and virulence genotypes among Escherichia coli clinical isolates from adjacent hospital campuses serving distinct patient populations.
Article in Antimicrobial agents and chemotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed.
- Mobile Genetic Elements as Central Drivers of Antimicrobial Resistance: Molecular Mechanisms, Evolutionary Ecology, One Health Implications and Control Strategies.Antibiotics (Basel, Switzerland) · 2026Review
- Recurrent infections caused by ESBL-producing enterobacterales with or without subsequent development of distinct carbapenem-resistant phenotypes: differential driving factors and impact on outcome.JAC-antimicrobial resistance · 2026Article
- Phylogenetic groups and extraintestinal virulence genes of inflowMicrobiology (Reading, England) · 2025Article
- Rapid Emergence, Subsidence, and Molecular Detection ofJournal of clinical microbiology · 2019Article
- Phylogenomic Analysis of Extraintestinal PathogenicAntimicrobial agents and chemotherapy · 2019Article
- Epidemiology and Antimicrobial Resistance Characteristics of the Sequence Type 131-H30 Subclone Among Extraintestinal Escherichia coli Collected From US Children.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018Article
- The PandemicOpen forum infectious diseases · 2017Article
- Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
Escherichia coli sequence type 13 (ST131), an emergent cause of multidrug-resistant extraintestinal infections, has important phylogenetic subsets, notably the H30 and H30Rx subclones, with distinctive resistance profiles and, possibly, clinical associations. To clarify the local prevalence of these ST131 subclones and their associations with antimicrobial resistance, ecological source, and virulence traits, we extensively characterized 233 consecutive E. coli clinical isolates (July and August 2013) from the University of Minnesota Medical Center-Fairview Infectious Diseases and Diagnostic Laboratory, Minneapolis, MN, which serves three adjacent facilities (a children's hospital and low- and high-acuity adult facilities). ST131 accounted for 26% of the study isolates (more than any other clonal group), was distributed similarly by facility, and was closely associated with ciprofloxacin resistance and extended-spectrum β-lactamase (ESBL) production. The H30 and H30Rx subclones accounted for most ST131 isolates and for the association of ST131 with fluoroquinolone resistance and ESBL production. Unlike ST131 per se, these subclones were distributed differentially by hospital, being most prevalent at the high-acuity adult facility and were absent from the children's hospital. The virulence gene profiles of ST131 and its subclones were distinctive and more extensive than those of other fluoroquinolone-resistant or ESBL-producing isolates. Within ST131, bla CTX-M-15 was confined to H30Rx isolates and other bla CTX-M variants to non-Rx H30 isolates. Pulsed-field gel electrophoresis documented a predominance of globally distributed pulsotypes and no local outbreak pattern. These findings help clarify the epidemiology, ecology, and bacterial correlates of the H30 and H30Rx ST131 subclones by documenting a high overall prevalence but significant segregation by facility, strong associations with fluoroquinolone resistance and specific ESBL variants, and distinctive virulence gene associations that may confer fitness advantages over other resistant E. coli.
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