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Diagn Microbiol Infect Dis. 2007 Jul;58(3):349-55. Epub 2007 Apr 20.

The emergence of a novel ceftazidime-resistant CTX-M extended-spectrum beta-lactamase, CTX-M-55, in both community-onset and hospital-acquired infections in Thailand.

Author information

1
Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand. sipkr@mahidol.ac.th

Abstract

We report a novel CTX-M type of extended-spectrum beta-lactamase (ESBL), designated CTX-M-55, among 7 patients who had infection with ESBL-producing Escherichia coli or Klebsiella pneumoniae at a university hospital in Thailand. The CTX-M-55 ESBL showed reduced susceptibility to ceftazidime. This investigation provides the relevant clinical and molecular epidemiology for the gene encoding for CTX-M-55 in the isolates from these patients.

[Indexed for MEDLINE]

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