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The prevalence of Paragonimus westermani in Taipei County


, : The prevalence of Paragonimus westermani in Taipei County. Zhonghua Minguo Wei Sheng Wu Ji Mian Yi Xue Za Zhi 19(4): 302-306

Paragonimus westermani is an endemic disease and has had scattered distribution in Northern Taiwan for the long period of 108 years. In order to known the current status of the prevalence of this disease in Taipei County, an investigation by means of examination of snail, crab and stool for identification of cercariae, metacercariae and ova of Paragonimus westermani was carried out in five small highly endemic foci-Alilao, Shengkeng, Shuangchi, Shihjen and Taiping from July 1984 to June 1985. The results obtained are summarized as follows: The infection rate for 17, 412 fresh-water snails, Semisulcospira libertina, the first intermediate host and for 180 freshwater crabs, Eriocheir japonicus, the second intermediate host was both negative in the first four places. On the contrary, the rate for 879 freshwater snails, Semisulcospira libertina, for 298 fresh-water crabs, Potamon miyazaki and Potamon dehaani and for 45 school-children was zero, 26.8% and zero respectively, in the last one. Based on the above findings, it is concluded that in the last 20 years, Paragonimus westermani might probably be under control in the former areas which are now developed districts. This development has probably influenced the prevalence and distribution of the disease. But it is still prevalent in the latter area located in remote undeveloped mountain.

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Accession: 001982019

PMID: 3816373

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Related references

Liu J C., 1986: The prevalence of paragonimus westermani in taipei county taiwan. Paragonimus westermani is an endemic disease and has had scattered distribution in Northern Taiwan for the long period of 108 years. In order to known the current status of the prevalence of this disease in Taipei County, an investigation by means...

Chiu J K.; Huang W H.; Chen H H.; Chiu P C.; Kao C T., 1983: Paragonimus westermani infection in crabs and school children in taipei county taiwan. In an attempt to obtain general information of Paragonimus infection in Taipei County [Taiwan] a county wide crab examination, and intradermal tests and fecal examinations among school children in endemic areas were made from 1963-1965. A total of...

Chen H.; E.A., 1990: Electrophoretic study of isoenzymes of diploid type of paragonimus westermani and paragonimus westermani ichunensis special reference to the validity of paragonimus westermani ichunensis. The comparative study on isoenzymes of diploid type of Paragonimus westermari and P. W ichurensis was performed by IEF and PAGE. of nine enzymes analyzed, G-6-PDH, DIA, TO, PO, and ACP were homogeneous in all individuals of both populations and no...

Agatsuma T.; Habe S.; Yokogawa M., 1987: Population genetic studies on isozymes of paragonimus westermani from taiwan and japan with special reference to the origin of the triploid paragonimus westermani. Isozyme studies were performed on diploid populations of Paragonimus westermani from Taiwan and Japan, including the triploid from Japan from a viewpoint of populations genetics. Out of 14 enzymes examined, three enzymes, GOT, HK, and PGM, showed...

Chung, H.L.; Hsu, C.P.; Kao, P.C., 1978: Preliminary studies on paragonimiasis in Ichun, Hokiang and Mutankiang areas of Heilungkiang Province with observations on a new subspecies of Paragonimus westermani--Paragonimus westermani ichunensis. The clinical manifestations of paragonimiasis in the Ichun, Hokiang and Mutankiang areas of China are described, and the morphological characters and measurements of the various life-cycle stages of the parasite obtained from the areas are given....

Chung, H.I.; Hsu, C.P.; Kao, P.C., 1978: Preliminary studies on paragonimiasis in Ichun, Hokiang and Mutankiang areas of Heilungkiang Province with observations on a new subspecies of Paragonimus westermani -- Paragonimus westermani ichunensis. The clinical manifestations of paragonimiasis in the Ichun, Hokiang and Mutankiang areas of China are described, and the morphological characters and measurements of the various life-cycle stages of the parasite obtained from the areas are given....

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