1980年4月起,我以访问学者身份留学日本二年。现将病毒性旰炎考察学习所得综合介绍如后,以供参考。[病原学]1981年日本学者首先用一般研究室都有的FL细咆(株化人羊膜细胞)成功地从甲型肝炎潜伏期患者粪便中分离甲肝病毒(HAV)并加以传代。初代接种后1—2日病毒增殖迅速,这与1979年Hiileman用狨肝细胞培养甲肝病毒时见到的病毒增殖情况不同。后者在初代 Since April 1980, I have been studying in Japan for two years as a visiting scholar. Viral inflammation is now a comprehensive investigation of learning introduced after, for reference. [Pathogenesis] In 1981, Japanese scholars first successfully isolated and passaged HAV from feces of hepatitis A patients with latent abnormalities using the FL cell line owned by the general laboratory. The virus proliferated rapidly 1-2 days after inoculation of primary virus, which is different from that seen in the case of hepatitis A virus cultured by Hiileman in 1979. The latter in the first generation