Korean J Parasitol.
1996 Mar;34(1):21-25. 10.3347/kjp.1996.34.1.21.
Effects of gamma-irradiation on the survival and development of Gymnophalloides seoi in C3H mice
- Affiliations
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- 1Department of Parasitology and Institute of Endemic Diseases, Seoul National University College of Medicine, Korea.
- KMID: 1715362
- DOI: http://doi.org/10.3347/kjp.1996.34.1.21
Abstract
- An experimental study was carried out to observe the effects of radiation on the infectivity of metacercariae of Gymnophalloides seoi to C3H mice. Oysters, the second intermediate host, were collected from an endemic area, and non-irradiated control, metacercaria-irradiation, and oyster-irradiation groups were prepared. One hundred metacercariae were infected orally to each mouse, and worm recovery rate was compared by groups at 7th day post-infection. In the metacercaria-irradiation group, the worm recovery rate was significantly reduced at radiation doses higher than 200 Gy, and the number of intrauterine eggs significantly reduced at doses over 50 Gy. In the oyster-irradiation group, 50 Gy significantly reduced both the worm recovery rate and number of uterine eggs. In the two groups, no worm was recovered at 1,000 Gy irradiation. Conclusively, irradiation of oysters with 200- 1,000 Gy was effective to control infectivity of metacercariae to C3H mice, and could be adopted as a control measure for gymnophalloidiasis.
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