Escherichia coli Isolates from Calf Diarrhea in Korea and Their Virulent Genetic Characteristics
スポンサーリンク
概要
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Escherichia coli strains were isolated from the feces of 130 diarrheic calves at different farms locations in Korea. The presence of the virulence genes, such as fanC, f41, f17a, eaeA, clpG, afa-8D, sta, stx1 and stx2, in each E. coli isolate was examined. Among the 314 isolates, 157 carried one or more of the virulence genes tested in this study. The most prevalent virulence gene was clpG (45.9%), although f17A (36.9%) and afa-8D (21.7%) were also frequently observed. The sta, stx1 and eaeA genes were detected in between approximately 13 and 17% of the isolates, and the fanC and fim41a genes were detected to a lesser extent. Collectively, our data indicated that diarrhea in calves in these locations can be ascribed to various virulence factors, and the pathogenesis may be more related to virulence genes such as, clpG, f17A, and afa-8D.
著者
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HUR Jin
Veterinary Public Health, College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk
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LEE John
Veterinary Public Health, College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk
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JEON Byung
Veterinary Public Health, College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju 561–756, South Korea
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KIM Yeong
Veterinary Public Health, College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju 561–756, South Korea
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OH In
Veterinary Public Health, College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju 561–756, South Korea
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LEE John
Veterinary Public Health, College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju 561–756, South Korea
関連論文
- Immune Response to New Vaccine Candidates Constructed by a Live Attenuated Salmonella Typhimurium Delivery System Expressing Escherichia coli F4, F5, F6, F41 and Intimin Adhesin Antigens in a Murine Model
- Escherichia coli Isolates from Calf Diarrhea in Korea and Their Virulent Genetic Characteristics