|
KMID : 0371919900030010024
|
|
Journal of Wonju College of Medicine
1990 Volume.3 No. 1 p.24 ~ p.34
|
|
|
|
|
安泳謙
李海容
|
|
|
Abstract
|
|
|
The seom rive system flows down through the Hoengseong-kun and Wonju-kun areas of Kangwon Province, and reachs to the south Han-river in Kyonggi Province. Stool specimens from the inhabitants residing along the seom river basin were examined to detect infection rates of Metagonimus sp., and the intermediate hosts were collected to detect larval stages. The results obtained were as follows:
1. Twenty-six (24 males and 2 females) out of 482 (302 males and 180 females) inhabitants were infected with Metagonimus sp. fluke, showing a total positive rate 5.4%.
2. In seven regions surveyed, the specimens from Sanhyon-ri of Seowon-myon at the middle reaches of the river showed the highly positive rate of 17.4% (8 positives out 46; male 25.9%). The positive rates in other regions were less than 6%.
3. The density of the first intermediate host Semisulcospira sp., was the highest in Sanhyon-ri of Seowon-myon (5~10 snails per ㎡), and the infection rate of Metagonimus sp. rediae or cercariae in the snails was 6.5% (6 positives out of 93 snails).
4. The infection rate of Metagoniums metacercariae in Zacco platypus, the fresh-water fish favorably eaten raw by the inhabitants, was 84.8% (28 positives out of 33 fishes), and most metacercariae were detected under the scales (86.7%). The number of the metacercariae was 50 per fish in average.
5. Adult worms Metagonimus sp. were obtained from the intestine of experimental rats, 5~10 days after infection with the metacercariae obtained from scales of Zacco platypus.
6. Two hundred sixteen (36.6%) out of 590 inhabitants and school children were experienced in eating raw fresh-water fishes (Zacco platypus, Odontobutis obscura, Coreoperca sp., Cyprinus sp., Moroco axycephalus etc.). The data were assayed with the questionnaire collected from the inhabitants.
In summarizing the above results, it is known that the Sanhyon-ri region of Seowon-myon is highly infected area and the main source of infection was fresh-water fish, Zacco platypus.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|
|