八木欣平，孝口裕一，郭志宏，野中成晃

    (1.日本北海道公共卫生学院传染病科医学动物研究室，日本，北海道 札幌，060-0819；2.青海大学畜牧兽医学院人畜共患病研究室，青海 西宁 810016；3.日本宫崎大学兽医科学部家畜寄生虫病学研究室，日本 宫崎 889-2192)

    1 Sanitary education

    Sanitary education to residents is performed by distribution on a brochure and notification of a poster through a health center and towns and villages in Hokkaido.When the epidemic area expanded in 1980′s，the presence of echinococcosis was reported by mass communication extensively，and therefore almost all residents in Hokkaido know existence of alveolar echinococcosis.Because correct information about the biological property of the parasite is necessary for sanitary education，Hokkaido local government built a facility of experimental infection for the definitive hosts of the parasite in the Hokkaido Institute of Public Health.The biological characteristics of the parasite isolated from Hokkaido have been clarified by a series of experimental infection studies.

    2 Physical check-up and development of early detection technology(serum examination)

    As the disease advances ......