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    Université de Fribourg

    Genetic features of MCR-1-producing colistin-resistant Escherichia coli isolates in South Africa

    Poirel, Laurent ; Kieffer, Nicolas ; Brink, Adrian ; Coetze, Jennifer ; Jayol, Aurélie ; Nordmann, Patrice

    In: Antimicrobial Agents and Chemotherapy, 2016, vol. 60, no. 7, p. 4394–4397

    A series of colistin-resistant Escherichia coli clinical isolates was recovered from hospitalized and community patients in South Africa. Seven clonally unrelated isolates harbored the mcr-1 gene located on different plasmid backbones. Two distinct plasmids were fully sequenced, and identical 2,600-bp-long DNA sequences defining a mcr-1 cassette were identified. Promoter sequences responsible...