Studies on development of Escherichia coli subunit vaccine against calf diarrhea, 1; distribution of enterotoxigenic Escherichia coli and purification of K99 and F41 pilus antigens
1986
Kim, J.M. | Yoon, Y.D. | Park, J.M. (Rural Development Administration, Anyang (Korea R.). Veterinary Research Inst.) | Kim, B.H. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine)
The prevalence of diarrhea caused by enterotoxigenic Escherichia coli was surveyed on 445 calves in 6 farms which were located in the central part of Korea. The incidence of enterotoxigenic Escherichia coli in calves with diarrhea was investigated by detecting the K99 and F41 antigens from the isolated strains of Escherichia coli. The incidence of colibacillosis in calves was 23.3%. Of 238 strains of Escherichia coli isolated from calves with diarrhea, 73 strains (30.6%) were proved possessing the K99 antigen by mannose-resistant hemagglutination (MRHA) using horse red blood cells and 79(33.1%) possessing F41 antigens by MRHA using guinea-pig red blood cells
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