公衆衞生学上より観たる鉤虫Carrierの問題

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The most important intestinal helminth of Japan is the hookworm. There is heavy hookworm contamination in the rural area in Japan. The diagnosis of the hookworm infection is made by discovery of the ova. We could not find these facts up to the present time, because we have still now the imperfect method of the hookworm diagnosis. Hookworm diagnosis must be tried by all means through the collection of ova method. We undertook the hookworm epidemiological research in cooperation with the Nagano, the Gumma and the Chiba prefectures. On the distributions of hookworms, we found the Anchylostoma duodenale in the mountain areas, and the Necator americanns in the plain districts. The major symptoms are those of chronic secondary anemia. About the curve of the infection of all ages, we find the infection rates of the 16-20 years classes indicate the infection average rates of all the districts. We performed physical and blood examinations on hookworm carriers. According to present observation it is considered that there are hookworm carriers who are in a transient stage to anemia, whose erythrocyte counts remain within the normal range, but whose reticulocyte counts were slightly increased. We found that the medullary function was accelerated in the carriers in whom anemia was not observed. The adult worm will live in intestine for several years, and deposits eggs which pass into the stools and develop in the soil. Erradication of hookworm carriers is not only an important problem of the public health in Japan, but ever so in all Far Eastern countries.
千葉大学の論文

公衆衞生学上より観たる鉤虫Carrierの問題

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