한국동물위생학회지 (Korean Journal of Veterinary Service)

  • 제42권4호
  • /
  • Pages.301-304
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  • 2019
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  • 3022-7372(pISSN)
  • /
  • 2287-7630(eISSN)
한국동물위생학회 (The Korean Society of Veterinary Service)
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Antimicrobial susceptibility pattern of Lawsonia intracellularis recently isolated from pig with proliferative hemorrhagic enteropathy in Korea

  • Seo, Byoung-Joo (Laboratory of Swine Diseases, College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University) ;
  • Koh, Sang-Eog (Valad Swine Vet Center) ;
  • Oh, Yeonsu (Laboratory of Veterinary Pathology, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Cho, Ho-Seong (Laboratory of Swine Diseases, College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University)
  • 투고 : 2019.12.10
  • 심사 : 2019.12.16
  • 발행 : 2019.12.30
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초록

The objective of this study was to determine the in vitro intracellular and extracellular minimum inhibitory concentrations (MICs) of 13 antimicrobials against one recently isolate Lawsonia intracellularis, the etiological agent of proliferative enteropathy (PE). The final MICs were assessed by counting the number of heavily infected cells (HICs;>30 bacteria per cell) using an immunoperoxidase monolayer assay. Enrofloxacin (InMIC; 1~2 ㎍/mL and ExMIC; 16 ㎍/mL) still presented the most notable antimicrobial susceptibility, and marbofloxacin (2 ㎍/mL and 8 ㎍/mL) was followed. Colistin (0.25 ㎍/mL and 2 ㎍/mL) presented a susceptibility followed by tylvalosin (1 ㎍/mL and 2 ㎍/mL). Florfenicol and lincomycin had the weakest susceptibility and amoxicillin, penicillin G, chlortetracycline, oxytetracycline, tiamulin, tilmicosin, and tylosin displayed weak susceptibility. Although some antibiotics showed decreased susceptibility patterns, they showed similar patterns to recent antibiotic susceptibility patterns in Korea. In addition, these results could be one of contributions in clinical fields.

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참고문헌

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