Colistin-resistant mcr-1-positive Escherichia coli on public beaches, an infectious threat emerging in recreational waters

Miriam R. Fernandes, Fábio P. Sellera, Fernanda Esposito, Caetano P. Sabino, Louise Cerdeira, Nilton Lincopan

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52 Citations (Scopus)


The emergence and rapid spread of colistin-resistant Escherichia coli carrying the mcr-1 gene have generated an urgent need to strengthen surveillance. We performed a meticulous investigation of strains of this sort, which resulted in the identification of international clones of E. coli carrying IncX4-plasmid-mediated mcr-1 and blaCTX-M genes in recreational waters of public urban beaches in cities with high tourist turnover, highlighting a new environmental reservoir.

Original languageEnglish
Article numbere00234-17
Number of pages4
JournalAntimicrobial Agents and Chemotherapy
Issue number7
Publication statusPublished - Jul 2017
Externally publishedYes


  • Brazil
  • CTX-M
  • ESBL
  • IncX4
  • MCR-1
  • Polymyxins

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