Newly found endemic foci of <i>Clonorchis sinensis</i> in Kyungpook Province, Korea

Original Article


Korean J Parasitol. 1974 Dec;12(2):111-118. English. Published online Mar 20, 1994. http://dx.doi.org/10.3347/kjp.1974.12.2.111
Copyright © 1974 by The Korean Society for Parasitology


Newly found endemic foci of Clonorchis sinensis in Kyungpook Province, Korea
Chong Yoon Joo and Dong Wik Choi
Department of Parasitology, Kyungpook National University. School of Medicine, Taegu, Korea.


Abstract
Nishimura in 1943 indicated for the first time that a serious endemic focus of Clonorchis sinensis is located in the vicinity of Yeong-cheon(Kyungpook Province, Korea). Later, numerous surveys of this fluke in the Province have been made, but no additional report on the endemic focus of the fluke has been available. The overall percentage of Clonorchis sinensis infections, based on the discovery of eggs by the formalin-ether sedimentation technique, was found to be 54.8 percent from 851 residents in Nakjeon ri (village), Danmil myun, Uiseong gun (county), Kyungpook Province and no significant difference was observed in the sex specific rate of the individuals infected. There is a high incidence of infection with Clonorchis sinensis. The infection rate in the age group from 0 to 4 years was 14.6 per cent, 5 to 9 years was 35.7 per cent and 10 to 14 years was 51.7 per cent. In the worn burdens for residents, the average number of egg-counts was 41,800. It is found that a serious endemic focus of Clonorchis sinensis exists in the vicinity of Nakjeon village.

Figures


	Fig. 1 Surveyed area in Uiseong county, Kyung-pook Province.

Tables


	Table 1 Prevalence of Clonorchis sinensis among children in Nakjeon-ri, Danmil myun, Uiseong gun, Kyungpook province(1974)


	Table 2 Prevalence of Clonorchis sinensis among general population in Nakjeon-ri, Danmil myun (1974)


	Table 3 Distribution of Stoll egg-counts among inhabitants in Nakjeon-ri, Danmil myun, Uiseong gun, Kyungpook Province(1974)


	Table 4 Comparison of prevalence rates for Clonorchis sinensis among the residents of Uiseong gun, Kyungpook Province, Korea (1974)


	Table 5 Demonstration of Clonorchis metacercariae from fresh-water fish


	Table 6 The reported prevalence of Clonorchis sinensis in Kyungpook Province, Korea

References


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