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American Society for Microbiology, Antimicrobial Agents and Chemotherapy, 5(61), 2017

DOI: 10.1128/aac.02718-16

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Chicken Meat as a Reservoir of Colistin-Resistant Escherichia coli Strains Carrying mcr-1 Genes in South America

Journal article published in 2017 by Daniel Farias Monte, Andressa Mem, Miriam R. Fernandes, Louise Cerdeira, Fernanda Esposito, Julia A. Galvão ORCID, Bernadette D. G. M. Franco, Nilton Lincopan ORCID, Mariza Landgraf
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

ABSTRACT The detection and rapid spread of colistin-resistant Enterobacteriaceae carrying the mcr-1 gene has created an urgent need to strengthen surveillance. In this study, eight clonally unrelated colistin-resistant Escherichia coli isolates carrying mcr-1 and bla CTX-M or bla CMY-2 genes were isolated from commercial chicken meat in Brazil. Most E. coli strains carried IncX4 plasmids, previously identified in human and animal isolates. These results highlight a new reservoir of mcr-1 -harboring E. coli strains in South America.