Cited by 413Escherichia coli research studiesAntibiotic Resistance in BacteriaUrinary Tract Infections Management

Pandemic lineages of extraintestinal pathogenic Escherichia coli

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Riley, L.W.·2014·Clinical Microbiology and Infection

Abstract

Pathogenic Escherichia coli strains cause a wide variety of intestinal and extraintestinal infections. The widespread geographical clonal dissemination of intestinal pathogenic E. coli strains, such as E. coli O157:H7, is well recognized, and its spread is most often attributed to contaminated food products. On the other hand, the clonal dissemination of extraintestinal pathogenic E. coli (ExPEC) strains is also recognized, but the mechanism of their spread is not well explained. Here, I describe major pandemic clonal lineages of ExPEC based on multilocus sequence typing (MLST), and discuss possible reasons for their global dissemination. These lineages include sequence type (ST)131, ST393, ST69, ST95, and ST73, which are all associated with both community-onset and healthcare-associated infections, in particular urinary tract infections and bloodstream infections. As with many other types of drug-resistant Gram-negative and Gram-positive bacterial infections, drug-resistant ExPEC infections are recognized to be caused by a limited set of clonal lineages. However, reported observations on these major pandemic lineages suggest that the resistance phenotype is not necessarily the determinant of their clonal dissemination. Both epidemiological factors and their intrinsic biological 'fitness' are likely to contribute. An important public health and clinical concern is that pandemicity itself may be a determinant of progressive drug resistance acquisition by clonal lineages. New research is urgently needed to better understand the epidemiological and biological causes of ExPEC pandemicity.

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Crossref · 10.1111/1469-0691.12646

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Authors
Riley, L. W.
Affiliations
University of California, Berkeley (US)
Corresponding author
Riley, L.W.
Venue
Clinical Microbiology and Infection
Publisher
Elsevier BV
Published
2014-05
Volume
20
Issue
5
Pages
380-390
ISSN
1198-743X (ISSN-L)
OpenAlex
W2027836512
Cited by
412
References
115
Citations by year
2026: 18 · 2025: 43 · 2024: 42 · 2023: 46 · 2022: 47 · 2021: 37 · 2020: 57 · 2019: 36 · 2018: 22 · 2017: 24 · 2016: 17 · 2015: 19 · 2014: 4
FWCI
2.79
Type
journal article
Language
en
Open access
Locations
  • Clinical Microbiology and Infection (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Escherichia coli research studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Antibiotic Resistance in Bacteria
  • Health Sciences › Medicine › Epidemiology › Urinary Tract Infections Management
Keywords
extraintestinal pathogenic Escherichia coli, multilocus sequence typing, ST131, ST69, ST95, ST73, antimicrobial resistance, urinary tract infection, bloodstream infection, community-onset infection, nosocomial infections, clonal spread, bacterial fitness
MeSH terms
Escherichia coli, Escherichia coli Infections, Humans, Virulence, Bacterial Typing Techniques, Molecular Epidemiology, Cell Lineage, Drug Resistance, Bacterial, Pandemics, Multilocus Sequence Typing

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