Ibaraki virus, an agent of epizootic disease of cattle resembling bluetongue. I. Epidemiologic, clinical and pathologic observations and experimental transmission to calves
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- OMORI Tuneyoshi
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
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- INABA Yuji
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
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- MORIMOTO Tomiaki
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
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- TANAKA Oshio
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
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- ISHITANI Ruizo
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
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- KUROGI Hiroshi
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
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- MUNAKATA Kozo
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
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- MATSUDA Kazuo
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
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- MATUMOTO Minoru
- National Institute of Animal Health Institute of Medical Science, University of Tokyo
書誌事項
- タイトル別名
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- Ibaraki Virus, an Agent of Epizootic Disease of Cattle Resembling Bluetongue
- I. Epidemiologic, Clinical and Pathologic Observations and Experimental Transmission to Calves
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説明
Outbreaks of an acute febrile disease of cattle occurred in Japan in 1959 and 1960. Its occurrence was limited in late summer and autumn, and in Kyushu, Shikoku and Honshu roughly south of 37 degrees north latitude, suggesting a close correlation of the incidence with the climatic conditions, hence a possibility of the presence of arthropod vector. The disease was characterized by fever and lesions affecting the mucous mem-brane and skin, musculature and vascular system. Degeneration of striated muscles was observed in the esophagus, larynx, pharynx, tongue and skeletal muscular system. Edema and hemorrhage were marked in the mouth, lips, abomasum, coronets etc., occasionally followed by degeneration of the epithelium leaving erosions or ulcerations. Severe lesions affecting the esophageal and laryngopharyngeal musculature caused deglutitive difficulty which in turn resulted in dehydration and emaciation, and occa-sionally in aspiration pneumonia, constituting the major causes of death of the affected animals. These findings indicate that the disease resembles bluetongue in sheep and cattle. The clinical materials obtained from natural cases induced a clinical illness when inoculated into calves, and the disease was transmitted serially in calves by intravenous inoculation of the blood obtained at the height of febrile reaction. The experimentally produced disease was clinically and pathologically indistinguishable from the natural disease.
収録刊行物
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- Japanese Journal of Microbiology
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Japanese Journal of Microbiology 13 (2), 139-157, 1969
財団法人 学会誌刊行センター