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Genotypic characterization of fluoroquinolone-resistant Escherichia coli isolates from edible offal

대한수의학회지 2020년 60권 3호 p.173 ~ 177
손세현, 서광원, 김영빈, 노은비, 이근우, 오태호, 김승준, 송재찬, 김태완, 이영주,
소속 상세정보
손세현 ( Son Se-Hyun ) - Kyungpook National University College of Veterinary Medicine
서광원 ( Seo Kwang-Won ) - Kyungpook National University College of Veterinary Medicine
김영빈 ( Kim Yeong-Bin ) - Kyungpook National University College of Veterinary Medicine
노은비 ( Noh Eun-Bi ) - Kyungpook National University College of Veterinary Medicine
이근우 ( Lee Keun-Woo ) - Kyungpook National University College of Veterinary Medicine
오태호 ( Oh Tae-Ho ) - Kyungpook National University College of Veterinary Medicine
김승준 ( Kim Seung-Joon ) - Kyungpook National University College of Veterinary Medicine
송재찬 ( Song Jae-Chan ) - Kyungpook National University College of Veterinary Medicine
김태완 ( Kim Tae-Wan ) - Kyungpook National University College of Veterinary Medicine
이영주 ( Lee Young-Ju ) - Kyungpook National University College of Veterinary Medicine

Abstract


Edible offal is easily contaminated by Escherichia coli (E. coli) and fluoroquinolone (FQ)-resistant E. coli is considered a serious public health problem, thus, this study investigated the genetic characteristics of FQ-resistant E. coli from edible offal. A total of 22 FQ-resistant E. coli isolates were tested. A double mutation in each gyrA and parC led the highest MIC. Four (18.2%) isolates carried plasmid-mediated quinolone resistance genes. The fimH, eaeA, escV, astA, and iucC genes were confirmed. Seventeen isolates (77.3%) were positive for plasmid replicons. The isolates showed high genetic heterogeneity based on pulsed-field gel electrophoresis patterns.

키워드

Escherichia coli;edible offal;fluoroquinolones; quinolone resistance-determining region; molecular typing

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