1887

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Volume 61, Issue 2

Identification of a plasmid-borne gene in clinical isolates of and Free

Abstract

The acquired metallo-β-lactamases represent a significant clinical threat due to their unrivalled hydrolysis spectrum and their resistance to therapeutic inhibitors of β-lactamase. In this study, we identified plasmid- and integron-borne in clinical isolates of and . The gene cassette was carried by a typical class 1 integron together with and gene cassettes. The integron, - ---Δ, was easily transferred by intraspecies and intergenus conjugation of bacteria, indicating that the integron is located on a transferable plasmid. The integrated genes were preceded by TGGACA-N-TAAACT, a hybrid P promoter. Similar to the wild-type donors, the transconjugants also showed reduced susceptibility or resistance to carbapenems, amikacin and kanamycin. The identical integron was detected in four bacterial strains which were genetically different but were isolated from infant inpatients in the same paediatric department. These results demonstrate the colonization of the plasmid- and integron-borne and in the hospital environment, highlighting the importance of surveying and controlling the spread of such resistance determinants in nosocomial pathogens.

  • Received:
  • Accepted:
  • Published Online:
© 2012 SGM
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2012-02-01
2023-03-24
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Identification of a plasmid-borne blaIMP-11 gene in clinical isolates of Escherichia coli and Klebsiella pneumoniae
J. Med. Microbiol. 61, 246 (2012); https://doi.org/10.1099/jmm.0.035626-0
/content/journal/jmm/10.1099/jmm.0.035626-0
/content/journal/jmm/10.1099/jmm.0.035626-0
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