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KMID : 0377519810060020245
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Chung-Ang Journal of Medicine
1981 Volume.6 No. 2 p.245 ~ p.249
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A Mathematical Approach to the Analysis on the Periodicity of Microfilaria of Brugia malayi in Cheju-Do
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Park Young-Ill
Kang Shin-Yong
Lee Soon-Hyung
Shim Tae-Sub
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Abstract
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The different periodicity of microfilariae of Brugia malayi in the blood has been observed by many investigators in the various areas. This study was undertaken to determine the periodicity of microfilaria in Cheju area, where malayan filariasis is endemic, and to compare author’s results with that of calculating result from the data reported by Kim(1971). In this study, 9 microfilaria positive cases in Cheju area were analysed. For the mathematical analysis of periodicity pattern in the microfilaria positive cases in Cheju area, the model of Aikat & Das (1976) was applied to the observed data. The periodicity of the present data was distinctly nocturnal pattern in which the peak hour of microfilaria density was 01:37 a. m. and periodicity index was calculated to be 90.13% by using above mathematical model, while the inland area of Korea, the peak hour was at 00:34 a. m. and periodicity index was calculated to be 128.86%. On the base of the above mathematical analysis, it was clearly shown that there was almost no difference in peak hour and periodicity index between the two areas. Also it is certain that the periodicity pattern of Brugia malayi in Korea is tangibly nocturnal and is closely similar to that in the Penang strain of Malaya and Kerala strain of India.
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KEYWORD
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