2007年の日本におけるワクチン接種馬群での馬インフルエンザの流行

DOI 日本農学文献記事索引 Web Site Web Site 被引用文献12件 参考文献20件
  • YAMANAKA Takashi
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • NIWA Hidekazu
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • TSUJIMURA Koji
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • KONDO Takashi
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • MATSUMURA Tomio
    Epizootic Research Center, Equine Research Institute, Japan Racing Association

書誌事項

タイトル別名
  • Epidemic of Equine Influenza among Vaccinated Racehorses in Japan in 2007
  • Virology: Epidemic of equine influenza among vaccinated racehorses in Japan in 2007

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抄録

On August 2007, we encountered equine influenza epidemic by Florida sub-lineage strain (H3N8) in Japan Racing Association's facilities where 4142 racehorses in total were stabled. The number of new febrile cases sharply increased, but the occurrence was rapidly calmed down within 2 weeks. The morbidity rate in these facilities was 12.8% and the subclinical infection rate of healthy racehorses examined by rapid antigen detection tests was 19.4% at the early stage of epidemic. The serological studies along with the low morbidity rate and the existence of numbers of asymptomatically infected racehorses, suggested that the cross-reactivity of the antibodies provided by vaccination against the epidemic strain contributed to reducing the morbidity rate and duration of epidemic.<br>

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