Korean Journal of Clinical Laboratory Science (대한임상검사과학회지)

Korean Society for Clinical Laboratory Science (대한임상검사과학회)
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A Case of Cysteine-Requiring Escherichia coli Isolated from Urine Specimen

소변 검체에서 분리된 Cysteine 요구성 Escherichia coli 1예

  • Kang, Ji-Sang (Department of Laboratory Medicine, Seoul National University Hospital) ;
  • Joo, Sae-Ick (Department of Laboratory Medicine, Seoul National University Hospital) ;
  • Kim, Eui-Chong (Department of Laboratory Medicine, Seoul National University Hospital)
  • 강지상 (서울대학교병원 진단검사의학과) ;
  • 주세익 (서울대학교병원 진단검사의학과) ;
  • 김의종 (서울대학교병원 진단검사의학과)
  • Received : 2009.05.04
  • Accepted : 2009.06.25
  • Published : 2009.06.30
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Abstract

A case of recurrent urinary tract infection by cysteine-requiring Escherichia coli in a 5-years-old child with congenital vesicoureteral reflux is described. This bacterium was not grown on MacConkey agar plate for overnight culture, and after 48hrs, tiny colonies were observed. These colonies were not identified by VITEK2 and Walkaway 96i without cysteine supplementation. The isolate was susceptible for cefotetan, ciprofloxacin and imipenem, and resistant for piperacillin/tazobactam, cephalothin, cefotaxime, ceftazidime, amikacin, gentamicin, and tobramycin.

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