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Specific blaCTX-M-8/IncI1 Plasmid Transfer among Genetically Diverse Escherichia coli Isolates between Humans and Chickens.

ABSTRACT: We investigated the genetic backbones of 14 blaCTX-M-8-positive Escherichia coli isolates recovered from human stool samples and chicken meat. All isolates carried IncI1 plasmids with blaCTX-M-8 (blaCTX-M-8/IncI1), and most (9/14) belonged to a specific genetic lineage, namely, plasmid sequence type 113 (pST113). The genetic contexts of the nine blaCTX-M-8/IncI1 pST113 plasmids were similar, regardless of the source. These results suggest the probable local transfer of blaCTX-M-8/IncI1 between humans and chickens with genetically diverse E. coli.

SUBMITTER: Norizuki C 

PROVIDER: S-EPMC5444161 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

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Specific <i>bla</i><sub>CTX-M-8</sub>/IncI1 Plasmid Transfer among Genetically Diverse Escherichia coli Isolates between Humans and Chickens.

Norizuki Chihiro C   Wachino Jun-Ichi JI   Suzuki Masahiro M   Kawamura Kumiko K   Nagano Noriyuki N   Kimura Kouji K   Arakawa Yoshichika Y  

Antimicrobial agents and chemotherapy 20170524 6

We investigated the genetic backbones of 14 <i>bla</i><sub>CTX-M-8</sub>-positive <i>Escherichia coli</i> isolates recovered from human stool samples and chicken meat. All isolates carried IncI1 plasmids with <i>bla</i><sub>CTX-M-8</sub> (<i>bla</i><sub>CTX-M-8</sub>/IncI1), and most (9/14) belonged to a specific genetic lineage, namely, plasmid sequence type 113 (pST113). The genetic contexts of the nine <i>bla</i><sub>CTX-M-8</sub>/IncI1 pST113 plasmids were similar, regardless of the source.  ...[more]

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