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Improvement in routine detection of colistin resistance in E. coli isolated in veterinary diagnostic laboratories
Eric Jouy1, Marisa Haenni2, Laëtitia Le Devendec1
1ANSES, Laboratoire de Ploufragan-Plouzané, Unité Mycoplasmologie-Bactériologie, Ploufragan, France; Univ Bretagne Loire, France.
Abstract:
We have developed a phenotypic method suited to the systematic screening of resistance to colistin in E. coli, including those with the mcr-1 gene, by the absence of an inhibition zone after an application of a single drop of 8mg/L colistin solution on a previously inoculated Mueller-Hinton agar.
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