Molecular features of community-associated extended-spectrum-β-lactamase-producing Escherichia coli strains in the United States

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Abstract

We characterized 30 community-associated extended-spectrum-β-lactamase-producing Escherichia coli isolates collected from five hospitals in the United States. Nineteen sequence types were identified. All sequence type 131 (ST131) isolates had the fimH30 allele. IncFII-FIA-FIB was the most common replicon type among the blaCTX-M-carrying plasmids, followed by IncFII-FIA and IncA/C. Restriction analysis of the IncFII-FIA-FIB and IncFII-FIA plasmids yielded related profiles for plasmids originating from different hospitals. The plasmids containing blaCTX-M or blaSHV were stably maintained after serial passages.

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CITATION STYLE

APA

Hu, F., O’Hara, J. A., Rivera, J. I., & Doi, Y. (2014). Molecular features of community-associated extended-spectrum-β-lactamase-producing Escherichia coli strains in the United States. Antimicrobial Agents and Chemotherapy, 58(11), 6953–6957. https://doi.org/10.1128/AAC.03321-14

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