Outbreak of CTX-M-15-producing enterotoxigenic Escherichia coli O159:H20 in the Republic of Korea, 2016 [PublishAheadOfPrint]

We investigated an outbreak of enterotoxigenic Escherichia coli (ETEC) O159:H20 associated with the consumption of a tossed noodle dish in a high school in 2016. Thirty-three ETEC strains isolated from both clinical and food samples were genetically indistinguishable. The outbreak strains were resistant to third-generation cephalosporins and harbored a bla_CTX-M-15 gene on a 97-kb self-transferable IncK plasmid. This is the first outbreak caused by CTX-M-15-producing ETEC strains.

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