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

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 co...

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Published inDiagnostic microbiology and infectious disease Vol. 69; no. 2; pp. 228 - 231
Main Authors Zong, Zhiyong, Yu, Rujia
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.02.2011
Subjects
Escherichia coli
Extended-spectrum β-lactamase
Plasmid
Plasmid
Escherichia coli
Extended-spectrum β-lactamase
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Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0732-8893
1879-0070
DOI:10.1016/j.diagmicrobio.2010.10.007