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KMID : 0377219840090010175
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Medical Journal of Chosun Univercity
1984 Volume.9 No. 1 p.175 ~ p.186
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Epidemiological Investigation on Metagonimus yokogawai and Clonorchis sinensis Infections along Tamjin River Basin
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최신철/Choi, Shin-Chull
문재규/정요한/Moon, Jae-Gyu/Chung, Yo-Han
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Abstract
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An epidemiological study was performed along Tamjin River Basin, Jeonranam Do, Korea in order to estimate the endemicity of Metagonimus yokogawai and Clonorchis sinensis infections. A total of 472 stool specimens were collected from the inhabitants residing in Dcohcheon Ri and Seokyo Ri, Gundong Myon, Gangjin Gun, and examined for helminth eggs and for intensity of two kinds of fluke infections. For intermediate host study, 394 Seinisulcospira libertina and 19 Parafossarulus manchouricus snails, and 20 Plecoglossus altivelis and 56 Pseudorasbora Parva fresh water fishes were collected at Jangheung and Gangjin Guns and examined for cercariae or metacercariae of either M. yokogawai or C. sinensis.
The summarized results were as follows :
1. The results of stool examination were all helminth egg positive rate 83.9% Trichuris trichiura 61.7%, Ascaris lumbrieodes 43.6%, Metagonimus yokogawai 27.3%, Clonorchis sinensis 4.9%, Taenia sp. 1.5%, Enterobius vermieularis 1.7%, Hymenolepis nana 0.4%, hookworms 0.2% and Paragonimus westermani 0.2%.
2. The intensity of infection in the inhabitants revealed by average E.P.G (eggs per gram of feces) count was 1,313 in case of M. yokogawai and 720 in case of C. sinensis. The majority (over 90%) of the egg positive cases of both flukes was with relatively low E.P.G. grades under 5,000.
3. The egg positive rates of M. yokogawai and C. sinensis in male were higher(35.6%)
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