Evidence map›Paper›PMID 19339467›Full record

ArticleJournal of clinical microbiology2009

Three-decade epidemiological analysis of Escherichia coli O15:K52:H1.

Bente Olesen, Flemming Scheutz, Megan Menard, Marianne N Skov, Hans Jørn Kolmos, Michael A Kuskowski, James R Johnson

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.9field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 47 citations in OpenAlex.

  1. Antimicrobial Susceptibility Profiles of CommensalAntibiotics (Basel, Switzerland) · 2025
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  2. Antimicrobial Susceptibility Profiles of CommensalAntibiotics (Basel, Switzerland) · 2024
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  5. Phylogenetic Groups and Antimicrobial Resistance Genes inAntibiotics (Basel, Switzerland) · 2021
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  6. Review
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  8. Molecular Characterization of UropathogenicMedicina (Kaunas, Lithuania) · 2019
    Article
  9. Review
  10. Antibiotic resistance is linked to carriage of papC and iutA virulence genes and phylogenetic group D background in commensal and uropathogenic Escherichia coli from infants and young children.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2017
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Bente OlesenDepartment of Clinical Microbiology, Hillerød Sygehus, Helsevej 2, DK-3400 Hillerød, Denmark. benol@hih.regionh.dk
Flemming Scheutz
Megan Menard
Marianne N Skov
Hans Jørn Kolmos
Michael A Kuskowski
James R Johnson
University of Minnesota Medical Center · USOdense University Hospital · DKStatens Serum Institut · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The successful Escherichia coli O15:K52:H1 clonal group provides a case study for the emergence of multiresistant clonal groups of Enterobacteriaceae generally. Accordingly, we tested the hypotheses that, over time, the O15:K52:H1 clonal group has become increasingly (i) virulent and (ii) resistant to antibiotics. One hundred archived international E. coli O15:K52:[H1] clinical isolates from 100 unique patients (1975 to 2006) were characterized for diverse phenotypic and molecular traits. All 100 isolates derived from phylogenetic group D and, presumptively, sequence type ST393. They uniformly carried the F16 papA allele and papG allele II (P fimbria structural subunit and adhesin variants), iha (adhesin-siderophore), fimH (type 1 fimbriae), fyuA (yersiniabactin receptor), iutA (aerobactin receptor), and kpsM II (group 2 capsule); 85% to 89% of them contained a complete copy of the pap operon and ompT (outer membrane protease). Slight additional virulence profile variation was evident, particularly within a minor diarrhea-associated subset (biotype C). However, in contrast to the clonal group's fairly stable virulence profiles over the past 30+ years, during the same interval the clonal group members' antimicrobial resistance profiles increased by a mean of 2.8 units per decade (P < 0.001). Moreover, the numbers of virulence genes and resistance markers were positively associated (P = 0.046), providing evidence against antimicrobial resistance and virulence being mutually exclusive in these strains. Thus, the O15:K52:H1 clonal group has become increasingly resistant to antimicrobials while maintaining (or expanding) its virulence potential, a particularly concerning trend if other emerging multiresistant enterobacterial clonal groups follow a similar pattern.

Indexed as

Drug Resistance, BacterialEvolution, MolecularAnti-Bacterial AgentsBacterial Typing TechniquesCluster AnalysisEscherichia coliEscherichia coli InfectionsEscherichia coli ProteinsGenotypeHumansSerotypingVirulence FactorsAnti-Bacterial AgentsEscherichia coli ProteinsVirulence Factors

Identifiers

PMID19339467
PMCPMC2691114
OpenAlexW2024403005

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.