Epidemiological studies on Clonorchis sinensis infection along the Nam-river in Gyeongnam province, Korea.
10.3347/kjp.1983.21.2.167
- Author:
Kyoung Hoon BAE
1
;
Yung Kyum AHN
;
Chin Thack SOH
;
Hiroshi TSUTSUMI
Author Information
1. Instiutue of Tropical Medicine, Yonsei University, Seoul, Korea.
- Publication Type:Original Article
- MeSH:
parasitology-helminth-trmatoda;
Clonorchis sinensis;
clonorchiasis;
epidemiology;
Pseudorasbora parva;
Parafossarulus sp.;
Loxogenes liberum;
Cyathocotyle orientalis;
Notocotylus attenuatus;
Zacco platypus;
Hemibarbus sp.;
Gnathopogon sp.;
Ischikauia steenackeri;
Pseudogobio esocinus
- From:The Korean Journal of Parasitology
1983;21(2):167-186
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The prevalence of C. sinensis infection along the Nam river, Korea, was 38.7% of 5,291 people examined. Prevalence rates varied from 42% at the upper stream to 34% at the middle stream and 40% at the down stream region. Rates were highest (53.4-54.3%) in the 30-59 years of age group. The positive rates in primary school chidren, school students, teachers and local officers, and other inhabitants were 16.5%, 22.6%, 46.2% and 49.6% respectively. 53.6% of cases were light infected, i.e. less than 4,000/EPG. The cercarial expulsion rate of 5,005 Parafossarulus sp. was 0.34%. Snails naturally infected with C. sinensis expelled about 788 cercariae/day. Ten of 18 species of freshwater fish examined had C. sinensis metacercariae. To prevent clonorchiasis in the endemic areas, the effective health education system is suggested as a control measure. [retyped from English summary]
