日本農村医学会雑誌
Online ISSN : 1349-7421
Print ISSN : 0468-2513
ISSN-L : 0468-2513
エキノコックス症の今日的問題点
蔓延の恐れとその対策
並木 正義
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ジャーナル フリー

1992 年 40 巻 6 号 p. 1113-1116

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Although there are two different types of echinococcosis, either unilocular or multilocular, what is prevalent here in Hokkaido is multilocular echinococcosis. This type of echinococcosis is malignant in nature with frequent metastasis and poor prognosis, thereby being often named as “malignant echinococcosis.” Most of patients develop in the form of hepatic echinococcosis. The risk of wide spread of this parasite disease all over Hokkaido has recently been in rise, producing a serious medical and social problem. One hundred and sixty (75.4%) out of total 212 cities and towns in Hokkaido have been designated as an “infected area”, a place where host animals have been found to have this parasite in the body, and this number has been even increasing these days
On the other hand, as Hokkaido has become more popular than ever among tourists, more travelers are now at the risk of becoming infected with echinococcus. Since the latent period of this infection is relatively long (5-15 years on average), the development of multilocular echinococcosis may become evident even in the least expected part of Japan, after infected patients may have forgotten the mementos their trip to Hokkaido. This problem, therefore, is not limited to Hokkaido. This is why I have chosen this particular topic for my special lecture, hoping a number of people to have an adequate interest and understanding of this parasite disease. I described the following topics: 1) History and infectious root of echinococcosis in Hokkaido; 2) Profiles of patients with echinococ -cosis; 3) Pathophysiology and clinical stage; 4) Points of diagnosis; 5) Present state of treatment; 6) Preventive measures and elimination ways

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