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http://dx.doi.org/10.3347/kjp.2018.56.2.183

Infection Status with Clonorchis sinensis Metacercariae in Fish from Tamjin-gang (River) in Jeollanam-do, Republic of Korea  

Yoon, Ki-Bok (Division of Microbiology, Jeollanam-do Institute of Health and Environment)
Lim, Hyun-Cheol (Division of Microbiology, Jeollanam-do Institute of Health and Environment)
Jeon, Doo Young (Division of Microbiology, Jeollanam-do Institute of Health and Environment)
Park, Sook (Division of Microbiology, Jeollanam-do Institute of Health and Environment)
Cho, Shin-Hyeong (Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention)
Ju, Jung-Won (Division of Vectors and Parasitic Diseases, Centers for Disease Control and Prevention)
Shin, Sung-Shik (Department of Parasitology, College of Veterinary Medicine, Chonnam National University)
Na, Byoung-Kuk (Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine)
Sohn, Woon-Mok (Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University College of Medicine)
Publication Information
Parasites, Hosts and Diseases / v.56, no.2, 2018 , pp. 183-188 More about this Journal
Abstract
The present study was performed to investigate the infection status with Clonorchis sinensis metacercariae (CsMc) in fishes from 2 sites, the middle and lower reaches, of Tamjin-gang (River) in Jeollanam-do, the Republic of Korea. Total 1,132 fishes in 22 species were collected from the middle reaches in Jangheung-gun for 4 years (2014-2017) and 517 fishes in 17 species were also collected from the lower reaches in Gangjin-gun in 2014 and 2017. They were all individually examined with the artificial digestion method in our laboratory. CsMc were detected in 322 (28.5%) out of 1,132 fishes from Jangheung-gun, and in 161 (31.1%) out of 517 fishes from Gangjin-gun, and their densities were 51 and 57 per fish infected each. In the fish species with CsMc, positive rates were 61.5% in Jangheung-gun and 62.7% in Gangjin-gun. A total of 222 Pungtungia herzi were examined and they were all infected with CsMc. The average intensity was 103 CsMc in the index fish, P. herzi (95 in Jangheung-gun and 121 in Gangjin-gun). In P. herzi bimonthly examined in 2017, the intensity was commonly most higher in March in 2 surveyed sites, however the significant seasonal endemicity was not showed. Conclusively, it was confirmed that CsMc is more or less prevalent in fishes from Tamjin-gang and their endemicity is higher in fish from the lower reaches in Gangjin-gun than the middle reaches in Jangheung-gun in Jeollanam-do, Korea.
Keywords
Clonorchis sinensis; metacercaria; freshwater fish; index fish; Pungtungia herzi; Tamjin-gang;
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