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Immunological and Molecular Virological Studies on Rotavirus Infection in Animals

Research Project

Project/Area Number 03454102
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 基礎獣医学
Research InstitutionObihiro University of Agriculture and Veterinary Medicine

Principal Investigator

GOTO Hitoshi  Obihiro University of Agri.& Vet.Med., Dept.of Vet.Microbiol., Professor, 畜産学部, 教授 (20003072)

Co-Investigator(Kenkyū-buntansha) SHINAGAWA Morikazu  University of Agri.& Vet.Med., Dept.of Vet.Pub.Health, Professor, 畜産学部, 教授 (00001537)
OHTA Chikako  University of Agri.& Vet.Med., Dept.of Vet.Microbiol., Instructor, 畜産学部, 助手 (10176894)
Project Period (FY) 1991 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥6,300,000 (Direct Cost: ¥6,300,000)
Fiscal Year 1993: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1992: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1991: ¥3,500,000 (Direct Cost: ¥3,500,000)
KeywordsRotavirus / Cattle and horses / Serotyping / RNA genome / 各種動物由来
Research Abstract

Rotavirus (RV) is one of the causative agents of acute diarrhea in foals and calves. The mode of RV transmission among animals is still unclear, although RV has been reported to be wide-spreading in the animal populations. The present study is concerned with molecular virologic and immunologic features of RV infection in the animals. (1) A series of equine RVs was isolated from diarrheal foals in a light-horse farm from 1986 to 91. All the represented RVs in each year showed similar genomic RNA and serotype G3, suggesting the persistence of a particular RV strain in this farm for long time. In 1987, however, one isolate (CH3) showed a unique electropherotype (EPT) of viral RNA which differed from the others that widely prevailed on this farm. The VP7 amino acid sequence of strain CH3 also showed a high homology to that of G14 strain FI23, and the VP4 sequence, similar to that of strain H2, respectively. (2) Foal diarrhea with G3 RV broke out on the above-mentioned farm. In 1989, all of the foals received bovine colostral immunoglobulin (Ig) powder during the epidemic, and their morbidity was lower than that observed in 1987, when the Ig powder was not administered to foals. This suggests that the administration of Ig powder might partially prevent foal diarrhea. (3) Eight RV strains were isolated from fecal samples in epidemic diarrhea of new-born calves. Viral RNAs of the strains were classified into 5 EPTs. However, some strains presented not a single but mixed-up conformations of dual or triple EPTs. These data suggest that the mixed infection of distinct RVs in one calf cause the rearrengement of genomic segments among the strains. (4) In a closed dairy farm, bovine RV was isolated from 35 (16%) of 222 fecal specimens repeatedly collected from 59 calves born during the years 1990-93. The affected calves had IgA and IgG coproantibody levels much higher than those of normal calves 3 weeks old (P<0.05). Most of the 35 strains were isolated from calves aged 2 to 6

Report

(4 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • 1991 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] TAKAGI,Michihiro: "A minor pevalent strain in a severe outbreak of foal diarrhea associated with serotype 3 rotavirus." Journal of Veterinary Medical Science. 55. 661-663 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] WATANABE,Taro: "Preventive administration of bovine colostral immunoglobulins for foal diarrhea with rotavirus." Journal of Veterinary Medical Science. 55. 1039-1040 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] OHTA,Chikako: "Persistence of serotype G3 equine rotavirus on a light-horse farm in Japan." Archives of Virology. (submit in 1994).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] TAKAGI,Michihiro: "Characterization of a G14 equine rotavirus(strain CH3)isolated in Japan." Journal of General Virology. (submit in 1994).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] OHTA,Chikako: "Mixed infection of distinct serotype 6 rotaviruses among beef calves in Hokkaido,Japan." Journal of General Virology. (submit in 1994).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] ISHIZAKI,Hiroshi: "Persistence of mono-genomic bovine rotavirus strains on a closed dairy farm." Research in Veterinary Science. (submit in 1994).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] TAKAGI, Michihiro: "A minor prevalent strain in a severe outbreak of foal diarrhea associated with serotype 3 rotavirus." Japanese Journal of Veterinary Science. 55(4). 661-663 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] WATANABE, Taro: "Preventive administration of bovine colostral immunoglobulins for foal diarrhea with rotavirus." Japanese Journal of Veterinary Science. 55(4). 1039-40 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] OHTA, Chikako: "Persistence of serotype G3 equine rotavirus on a light-horse farm in Japan." Archives of Virology. (submit). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] TAKAGI, Michihiro: "Characterization of a G14 equine rotavirus (strain CH3) isolated in Japan." Journal of General Virology. (submit). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] OHTA, Chikako: "Mixed infection of distinct serotype 6 rotaviruses among beef calves in Hokkaido, Japan." Journal of General Virology. (submit). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] ISHIZAKI, Hiroshi: "Persistence of mono-genomic bovine rotavirus strains on a closed dairy farm." Research in Veterinary Science. (submit). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] TAKAGI,Michihiro: "A minor prevalent strain in a severe outbreak of foal diarrhea associated with serotype 3 rotavirus." Journal of Veterinary Medical Science. 55. 661-663 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] WATANABE,Taro: "Preventive administration of colostral immunoglobulins for foal diarrhea with rotavirus." Journal of Veterinary Medical Science. 55. 1039-1040 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] TAKAGI,Michihiro: "A minor prevalent strain in a severe outbreak of foal diarrhea associated with serotype 3 rotavirus." Journal of Veterinary Medical Science. 55. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] WATANABE,Taro: "Preventive administration of colostral immunoglobulins for foal diarrhea with rotavirus." Journal of Veterinary Medical Science. 55. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] OHTA,Chikako: "Mixed infection of distict serotype 6 rotaviruses among beef calves in Hokkaido,Japan." Journal of Clinical Microbiology.

    • Related Report
      1992 Annual Research Report
  • [Publications] OHTA,Chikako: "Mixed infections of distinct serotype 6 rotaviruses among beef calves in Hokkaido,Japan." Journal of Clinical Microbiology.

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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