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KMID : 0379319870120010117
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Korean Journal of Rural Medicine
1987 Volume.12 No. 1 p.117 ~ p.123
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Chages of Serum Antibody Levels by Indirect Hemagglutination Test after Treatment in Clonorchiasis
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朱炅煥/Joo, Kyoung-Hwan
金鍾成/鄭明淑/林漢鍾/Kim, Jong-Seong/Chung, Myung-Sook/Rim, Han-Jong
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Abstract
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Detection of IgG antibody in clonorchiasis has been accomplished through various serodiagnostic procedure including complement fixation test, gel diffusion test, indirect fluorescent antibody test, indirect hemagglutination test etc. In this report enzyme immunoassay (ELISA) and indirect hemagglutination test (IHA) were used to determine IgG serum antibody levels before and after therapy with praziquantel.
Briefly, sera from 62 cases of confirmed human clonorchiasis were examined before and after treatment with praziquantel. Among 62 cases treated 25 cases were categorized as completely cured groups by formalin-ether and careful examination of 4 cellophane thick smered slides at 18 months after treatment.
The sera of 25 cases of cured groups were examined again by ELISA and IHA, and compared to the previous data.
The results obtained were as follows;
1) Sensitivity of IHA test was 83.6% when cut-off titer of 1:8 was applied. No sera obtained from 10 normal healthy control showed positive reaction. r.
2) Twenty cases (80.0%) out of 25 cured one showed negative results by IHA at 18 months after treatment.
3) Although 5 cases showed positive titer even 18 months after treatment 3 cases of them showed decreased antibody titer. However 2 cases did not show any response.
4) Even though almost all cases showed decreased ELISA value, only 11 cases (44.0%) out of 25 patients showed negative results by ELISA at 18 months after treatment.
In conclusion, it is suggested that, while IgG ELISA for detecting long persisting antibody was more sensitive than IHA, IHA results more conclusively indicated effective treatment in elonorchiasis by negative conversion than did the results of ELISA.
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