CTX-M-55-type extended-spectrum β-lactamase-producing Shigella sonnei isolated from a Korean patient who had travelled to China

Wonmok Lee, Hae Sun Chung, Hyukmin Lee, Jong Hwa Yum, Dongeun Yong, Seok Hoon Jeong, Kyungwon Lee, Yunsop Chong

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We report a case of CTX-M-55-type extended-spectrum β-lactamase (ESBL)-producing Shigella sonnei infection in a 27-year-old Korean woman who had traveled to China. The patient was admitted to the hospital due to abdominal pain, watery diarrhea, and fever (39.3°C). S. sonnei was isolated from her stool specimens, and the pathogen was found to be resistant to cefotaxime due to CTX-M-55-type ESBL. Insertion sequence (IS)Ecp1 was found upstream of the blaCTX-M-55 gene. The blaCTX-M-55 gene was transferred from the S. sonnei isolate to an Escherichia coli J53 recipient by conjugation. Pulsed-field gel electrophoresis and Southern blotting revealed that the blaCTX-M-55 gene was located on a plasmid of approximately 130 kb.

Original languageEnglish
Pages (from-to)141-144
Number of pages4
JournalAnnals of laboratory medicine
Issue number2
Publication statusPublished - 2013 Apr 17


All Science Journal Classification (ASJC) codes

  • Clinical Biochemistry
  • Biochemistry, medical

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