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KMID : 1143420230160431455
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Public Health Weekly Report
2023 Volume.16 No. 43 p.1455 ~ p.1463
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The Survey of Infection Status of Clonorchis sinensis Metacercariae of Freshwater Fish in 2022
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Lee Myoung-Ro
Ju Jung-Won
Baek Seon-Ok
Lee Young-Ju
Lee Hee-Il
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Abstract
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The Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency have been investigated the infection status of Clonorchis sinensis metacercariae (CsMc) in freshwater fish as part of an effort for reducing the parasite infection rate in the Republic of Korea. In this survey, all fishes were collected in 10 regions and examined infection rate using the artificial digestion method. The infection rate of CsMc was highest in Youngjeon Stream (50%) located in Chungsong-gun, Gyeongsangbuk-do. The infection rate of CsMc by fish species was highest in Pungtungia herzi with 1,258 CsMc followed by Squalidus japonicus Koreanus, Microphysogobio yaluensis, Pseudorasbora parva, Acheilognathus lanceolatus. Infection risk that infection intensity per fish was highest in Gilan Stream with 62.3. To reduce infection rate of Clonorchis sinensis (C. sinensis , Cs), it is necessary to conduct survey on infection risk in C. sinensis prevalent areas and provide information to local residents people about at the level of infection risk.
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KEYWORD
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Clonorchis sinensis, Metacercariae, Infection rates, Freshwater fish
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