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  • Title: Serial transmission of a putative causative virus of enterically transmitted non-A, non-B hepatitis to Macaca fascicularis and Macaca mulatta.
    Author: Uchida T, Win KM, Suzuki K, Komatsu K, Iida F, Shikata T, Rikihisa T, Mizuno K, Soe S, Myint H.
    Journal: Jpn J Exp Med; 1990 Feb; 60(1):13-21. PubMed ID: 2112652.
    Abstract:
    In order to establish an animal model and to identify a causative virus of enterically transmitted non-A, non-B hepatitis, Macaca fascicularis was inoculated with a fecal extract obtained from Myanmar patients with acute sporadic non-A, non-B hepatitis. The primates developed acute hepatitis exhibited by a transient elevation of aminotransferases in the sera and occurrence of hepatic necroinflammation between 2 and 4 weeks postinoculation. Subsequent second passage of the fecal extract made from first-passage primates into another Macaca fascicularis and Macaca mulatta induced acute hepatitis. Likewise, third passage was also successfully performed. Immune electron microscopy of the stool extract incubated with the primate serum at the acute phase of hepatitis showed an aggregation of virus-like particles. These particles consisted of full and empty round particles without an envelope, measuring approximately 27 nm in diameter. A dispersion of similar particles was found ultrastructurally in the hyaloplasm of hepatocytes surrounding the focal necrosis. This putative causative virus appears to be a new hepatitis virus.
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