The isolation and antimicrobiol susceptibility of Escherichia coli O157:H7 on bovine feces and carcass

소 분변과 도체에서 E coli O157:H7의 분리와 항생제 감수성

  • Chae Hee-Sun (Seoul Metropolitan Health & Environment Research Institute) ;
  • Kim Jong-Hwa (Seoul Metropolitan Health & Environment Research Institute) ;
  • Kim Gyu-Hyeon (Seoul Metropolitan Health & Environment Research Institute) ;
  • Choi Tae-Seok (Seoul Metropolitan Health & Environment Research Institute) ;
  • Shin Bang-Woo (Seoul Metropolitan Health & Environment Research Institute) ;
  • Lee Duck-Joo (Seoul Metropolitan Health & Environment Research Institute) ;
  • Lee Jung-Hark (Seoul Metropolitan Health & Environment Research Institute)
  • 채희선 (서울특별시 보건환경연구원) ;
  • 김종화 (서울특별시 보건환경연구원) ;
  • 김규현 (서울특별시 보건환경연구원) ;
  • 최태석 (서울특별시 보건환경연구원) ;
  • 신방우 (서울특별시 보건환경연구원) ;
  • 이덕주 (서울특별시 보건환경연구원) ;
  • 이정학 (서울특별시 보건환경연구원)
  • Published : 2005.03.01

Abstract

In this study, a total of 2,119 samples was taken from bovine feces and carcass from March 2002 to December 2003. And those were examined for the presence of enterohemorrhagic E coli O157:H7. The properties of the isolates were characterized for biochemical features, serotypes, virulence genes and antimicrobial susceptibility. Forty five strains($3.7\%$) of E coli O157:H7 were isolated from 1,208 fecal samples and were not detected in carcass using immunomagnetic separation technique and selective media. In multiplex PCR using stx1, stx2, eaeA and hlyA primers, the amplified bands at 180 bp, 255bp, 384bp and 534bp were observed, respectively. In antimicrobial susceptibility test, all isolates were susceptible to amoxicillin/clavulanic acid and cefazolin. The isolates were most resistant to sulfisoxazole($24.4\%$), followed by streptomycin($22.2\%$), tetracycline($20.0\%$). Eight strains($17.8\%$) of 45 isolates showed the multi-resistant patterns with over 3 drugs.

Keywords

References

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