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. 2021 Feb;59(1):97-101.
doi: 10.3347/kjp.2021.59.1.97. Epub 2021 Feb 19.

High Endemicity with Clonorchis sinensis Metacercariae in Fish from Yongjeon-cheon (Stream) in Cheongsong-gun, Gyeongsangbuk-do, Korea

Woon-Mok Sohn  1 , Byoung-Kuk Na  1 , Shin-Hyeong Cho  2 , Hee Il Lee  2 , Myoung-Ro Lee  2 , Jung-Won Ju  2 , Gou Ok Kim  3
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High Endemicity with Clonorchis sinensis Metacercariae in Fish from Yongjeon-cheon (Stream) in Cheongsong-gun, Gyeongsangbuk-do, Korea

Woon-Mok Sohn et al. Korean J Parasitol. 2021 Feb.

Abstract

The infection status with Clonorchis sinensis metacercariae (CsMc) was examined in freshwater fishes from Yongjeon-cheon (a branch of Nakdong-gang) located in Cheongsong-gun, Gyeongsangbuk-do, the Republic of Korea (Korea). A total of 750 fishes in 19 species were examined by the artificial digestion method for 2 years (2019 and 2020). CsMc were detected in 378 (51.4%) out of 735 fishes in 14 species (73.7%), and the infection intensity was 666 per fish infected. In 2019, CsMc were found in 172 (68.0%) out of 253 fishes in 10 species, and the infection intensity was 565 per fish infected. In 2020, CsMc were detected in 206 (62.2%) out of 331 fishes in 10 species, and the infection intensity was 751 per fish infected. The other zoonotic trematode, ie. Metagonimus spp., Centrocestus armatus, Echinostoma spp. and Clinostomum complanatum, metacercariae were also detected in fishes from the survey streams, but their endemicities were relatively low. Conclusively, it was first confirmed that CsMc are highly endemic in fishes from Yongjeon-cheon in Cheongsong-gun, Gyeongsangbuk-do, Korea.

Keywords: Cheongsong-gun; Clonorchis sinensis; Cyprinidae fish host; Korea; Yongjeon-cheon; Zoonotic trematode metacercaria.

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Conflict of interest statement

CONFLICT OF INTEREST

The authors have no conflicts of interest concerning the work reported in this paper.

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