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Prevalence and characterization of extended-spectrum β-lactamase- and AmpC β-lactamase-producing Escherichia coli: results of the CANWARD 2007-2009 study.

Diagnostic microbiology and infectious disease - 1 Mar 2011

Simner Patricia J, Zhanel George G, Pitout Johann, Tailor Franil, McCracken Melissa, Mulvey Michael R, Lagacé-Wiens Philippe R S, Adam Heather J, Hoban Daryl J

Abstract excerpt

The national prevalence of extended-spectrum β-lactamase (ESBL)-producing (2007: 3.4%, 2008: 4.9%, 2009: 4.3%) and AmpC β-lactamase (AmpC)-producing (2007: 0.8%, 2008: 3.2%, 2009: 2.7%) Escherichia coli in Canadian hospitals have fluctuated from 2007 to 2009. Rates of co-resistance to non-lactam agents are elevated, and multidrug-resistant (MDR) phenotype were observed among E. coli strains producing ESBLs (83.3%...

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PMID: 21353961
DOI: 10.1016/j.diagmicrobio.2010.10.029

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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