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Prevalence of mcr-1 in commensal Escherichia coli from French livestock, 2007 to 2014

Abstract : Colistin resistance was investigated in 1,696 isolates collected from 2007 to 2014 within the frame of the French livestock antimicrobial resistance surveillance programme. The mcr-1 gene was detected in all com-mensal Escherichia coli isolates with a minimum inhibi-tory concentration to colistin above the 2 mg/L cutoff value (n=23). In poultry, mcr-1 prevalence was 5.9% in turkeys and 1.8% in broilers in 2014. In pigs, investigated in 2013, this prevalence did not exceed 0.5%. These findings support that mcr-1 has spread in French livestock. We report mcr-1 prevalence data in commensal Escherichia coli isolated from French livestock from 2007 to 2014.
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Submitted on : Thursday, July 21, 2016 - 5:06:05 PM
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Agnès Perrin-Guyomard, Mireille Bruneau, Pamela Houée, Karine Deleurme, Patricia Legrandois, et al.. Prevalence of mcr-1 in commensal Escherichia coli from French livestock, 2007 to 2014. Eurosurveillance, European Centre for Disease Prevention and Control, 2016, 21 (6), pp.1-3. ⟨10.2807/1560-7917.ES.2016.21.6.30135⟩. ⟨anses-01347790⟩



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