Survey of Gymnophalloides seoi Metacercariae in Natural and Cultured Oysters from Several Western Coastal Areas, Korea
| Autor: | Keon-Hoon Lee, Hyemi Song, Taehee Chang, Sooji Hong, Bong-Kwang Jung, Jini Lim, Jaeeun Cho, Jisu Kang, Eui-Hyug Hoang, Jong-Yil Chai, Hana Lee |
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| Rok vydání: | 2019 |
| Předmět: |
Oyster
metacercarial survey 030231 tropical medicine Zoology Trematode Infections Brief Communication western coastal area Digenea 030308 mycology & parasitology Artificial digestion 03 medical and health sciences 0302 clinical medicine Intestinal trematode biology.animal cultured oyster Republic of Korea Animals Metacercariae Gymnophalloides seoi Shellfish 0303 health sciences natural oyster Korea biology biology.organism_classification Ostreidae Infection rate Infectious Diseases Crassostrea Parasitology Trematoda Gymnophallidae |
| Zdroj: | The Korean Journal of Parasitology |
| ISSN: | 1738-0006 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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