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Survey of Gymnophalloides seoi Metacercariae in Natural and Cultured Oysters from Several Western Coastal Areas, Korea.
Korean J Parasitol. 2019 Dec; 57(6):705-708.KJ

Abstract

Gymnophalloides seoi (Digenea: Gymnophallidae) is a human intestinal trematode contracted by eating raw oysters (Crassostrea gigas) in the Republic of Korea (=Korea). It has been known to be highly endemic in Aphae Island, Shinan-gun, Jeollanam-do (Province). However, recent epidemiological status of G. seoi has not been reported since the 1990s. In this study, we investigated the prevalence of G. seoi metacercariae in natural and cultured oysters collected from 3 islands and 2 coastal areas in western parts of Korea. The oysters were examined using the artificial digestion method followed by stereomicroscopy. The overall positive rate of G. seoi metacercariae in natural oysters was 66.0% (99/150), and the oysters collected from Yubu Island showed the highest infection rate (74.0%). However, the metacercarial density per oyster was relatively low (1.5-2.4 per oyster). By contrast, no metacercaria was found in cultured oysters purchased from 2 coastal areas in Chungcheongnam-do. Thus, we could confirm that natural oysters produced from 3 western coastal islands are infected with G. seoi metacercariae, whereas cultured oysters purchased from 2 coastal areas were free from infection.

Authors+Show Affiliations

Institute of Parasitic Diseases, Korea Association of Health Promotion, Seoul 07649, Korea.Institute of Parasitic Diseases, Korea Association of Health Promotion, Seoul 07649, Korea.Institute of Parasitic Diseases, Korea Association of Health Promotion, Seoul 07649, Korea.Institute of Parasitic Diseases, Korea Association of Health Promotion, Seoul 07649, Korea.Institute of Parasitic Diseases, Korea Association of Health Promotion, Seoul 07649, Korea.Institute of Parasitic Diseases, Korea Association of Health Promotion, Seoul 07649, Korea.Health Examination Management Bureau, Korea Association of Health Promotion, Seoul 07649, Korea.Daejeon-Chungnam Branch, Korea Association of Health Promotion, Daejeon 35264, Korea.Jeonbuk Branch, Korea Association of Health Promotion, Jeonju 54893, Korea.Gwangju-Jeonnam Branch, Korea Association of Health Promotion, Gwangju 61931, Korea.Institute of Parasitic Diseases, Korea Association of Health Promotion, Seoul 07649, Korea.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31914525

Citation

Chang, Taehee, et al. "Survey of Gymnophalloides Seoi Metacercariae in Natural and Cultured Oysters From Several Western Coastal Areas, Korea." The Korean Journal of Parasitology, vol. 57, no. 6, 2019, pp. 705-708.
Chang T, Jung BK, Song H, et al. Survey of Gymnophalloides seoi Metacercariae in Natural and Cultured Oysters from Several Western Coastal Areas, Korea. Korean J Parasitol. 2019;57(6):705-708.
Chang, T., Jung, B. K., Song, H., Cho, J., Hong, S., Lee, K. H., Hoang, E. H., Kang, J., Lim, J., Lee, H., & Chai, J. Y. (2019). Survey of Gymnophalloides seoi Metacercariae in Natural and Cultured Oysters from Several Western Coastal Areas, Korea. The Korean Journal of Parasitology, 57(6), 705-708. https://doi.org/10.3347/kjp.2019.57.6.705
Chang T, et al. Survey of Gymnophalloides Seoi Metacercariae in Natural and Cultured Oysters From Several Western Coastal Areas, Korea. Korean J Parasitol. 2019;57(6):705-708. PubMed PMID: 31914525.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Survey of Gymnophalloides seoi Metacercariae in Natural and Cultured Oysters from Several Western Coastal Areas, Korea. AU - Chang,Taehee, AU - Jung,Bong-Kwang, AU - Song,Hyemi, AU - Cho,Jaeeun, AU - Hong,Sooji, AU - Lee,Keon-Hoon, AU - Hoang,Eui-Hyug, AU - Kang,Jisu, AU - Lim,Jini, AU - Lee,Hana, AU - Chai,Jong-Yil, Y1 - 2019/12/31/ PY - 2019/09/30/received PY - 2019/10/21/accepted PY - 2020/1/9/entrez PY - 2020/1/9/pubmed PY - 2020/5/16/medline KW - Gymnophalloides seoi KW - Korea KW - cultured oyster KW - metacercarial survey KW - natural oyster KW - western coastal area SP - 705 EP - 708 JF - The Korean journal of parasitology JO - Korean J. Parasitol. VL - 57 IS - 6 N2 - Gymnophalloides seoi (Digenea: Gymnophallidae) is a human intestinal trematode contracted by eating raw oysters (Crassostrea gigas) in the Republic of Korea (=Korea). It has been known to be highly endemic in Aphae Island, Shinan-gun, Jeollanam-do (Province). However, recent epidemiological status of G. seoi has not been reported since the 1990s. In this study, we investigated the prevalence of G. seoi metacercariae in natural and cultured oysters collected from 3 islands and 2 coastal areas in western parts of Korea. The oysters were examined using the artificial digestion method followed by stereomicroscopy. The overall positive rate of G. seoi metacercariae in natural oysters was 66.0% (99/150), and the oysters collected from Yubu Island showed the highest infection rate (74.0%). However, the metacercarial density per oyster was relatively low (1.5-2.4 per oyster). By contrast, no metacercaria was found in cultured oysters purchased from 2 coastal areas in Chungcheongnam-do. Thus, we could confirm that natural oysters produced from 3 western coastal islands are infected with G. seoi metacercariae, whereas cultured oysters purchased from 2 coastal areas were free from infection. SN - 1738-0006 UR - https://www.unboundmedicine.com/medline/citation/31914525/Survey_of_Gymnophalloides_seoi_Metacercariae_in_Natural_and_Cultured_Oysters_from_Several_Western_Coastal_Areas_Korea_ L2 - http://www.parasitol.or.kr/kjp/DOIx.php?id=10.3347/kjp.2019.57.6.705 DB - PRIME DP - Unbound Medicine ER -