bla(CTX-M)-carrying Escherichia coli of the O25b ST131 clonal group have emerged in China

Diagn Microbiol Infect Dis. 2011 Feb;69(2):228-31. doi: 10.1016/j.diagmicrobio.2010.10.007.

Abstract

Six Escherichia coli O25b ST131 isolates, which were mostly hospital-acquired but from various types of samples, were found to carry bla(CTX-M-3a,)bla(CTX-M-14), or bla(CTX-M-65) genes, demonstrating that such isolates have emerged in China. The bla(CTX-M) genes were mostly carried by IncFII-related conjugative plasmids. All isolates were also resistant to ciprofloxacin and gentamicin and had substitutions in GyrA and carried an aac(3)-II gene.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacterial Typing Techniques
  • China
  • Escherichia coli / genetics*
  • Escherichia coli / isolation & purification*
  • Escherichia coli Infections / genetics*
  • Escherichia coli Infections / microbiology*
  • Genes, Bacterial / genetics
  • Humans
  • Molecular Sequence Data
  • Multilocus Sequence Typing
  • O Antigens / genetics*
  • Plasmids
  • beta-Lactamases / genetics*

Substances

  • O Antigens
  • beta-Lactamases

Associated data

  • GENBANK/GU462158