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KMID : 0438219730100030817
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Korea University Medical Journal
1973 Volume.10 No. 3 p.817 ~ p.827
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Studies on Ectoparasites of Field Rodents Collected in the Endemic Areas of Korean Hemorrhagic Fever
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Abstract
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Korean hemorrhagic fever (KHF) occurred for the first time in Korea, 1951, although it had previously been known to both the Japanese and Russian.
After Korean war, the disease has been fixed in the areas of DMZ as an endemic one, and from 100 to 400 cases have been being reported every year.
759 field rodents were collected in the endemic areas of civilian hemorrhagic fever patients in 1971 and 1972 and their ectoparasites were classified.
The results of the investigation on ectoparasites of field rodents are as follows.
1. Mites harvested from field rodents collected in the most prevalent endemic foci of KHF, Chulwon, Yunchun, Pochun and Paju are 8 genera and 14 species. The most predominant species was Laelaps agilis and, Euschongastia koreansis, Leptotrombidium pallida and Leptotrombidium palpalis in order.
2. Seasonal incidence of mites harvested from rodents was high in the dry seasons of Korea such as May, June, October and November. Population of blood-sucking mites Leptotrombidium pallida and Leptotrombidium palpalis reached maximum about one month before the peaks of KHF patients.
3. Lice lived upon on field rodents were 2 genera 4 species. Polyplax serrata was 78% in 1971 and Polyplax enulosa was 40% in 1972.
4. Fleas collected from field rodents were 6 genera 6 species and, the most prevalent species was Ctenophthalmus congener (70%) and next was Xenopsyella cheopis.
Above results are suggestive that Leptotrombidium mites, lice and fleas might play a role as a potential vector of Korean hemorrhagic fever.
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KEYWORD
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