オオタカ(ツミ)から分離されたParamyxovirusに関する研究 : II. 血清学的性状および病原性

概要

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A virus isolated from the brains of Japanese sparrow-hawks and designated Taka virus was serologically studied by serum neutralization and neuraminidase inhibition tests. It was found to be antigenically related to Newcastle disease virus (NDV) with regard to hemagglutinin and neuraminidase, and to a lower degree to Bangor virus. The optimal pH of its neuraminidase activity was pH 4.2, which was different from that of the enzyme of NDV or Bangor virus. Taka virus was pathogenic for chickens, like a velogenic strain of NDV. In winter, however, its transmission to chickens was very low by direct or indirect exposure by contact. The environmental temperature might play a predominant role in the pathogenicity and transmission of Taka virus. These results indicate that Taka virus may be a new variant strain of NDV.
社団法人日本獣医学会の論文
1978-12-25