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KMID : 0425120190570020161
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Parasites, Hosts and Diseases
2019 Volume.57 No. 2 p.161 ~ p.166
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Distribution of Rickettsia spp. in Ticks from Northwestern and Southwestern Provinces, Republic of Korea
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Jiang Ju
Choi Yeon-Joo
Kim Jeoung-Yeon
Kim Heung-Chul
Klein Terry A.
Richards Allen L.
Park Hye-Jin
Shin Sun-Hye
Song Da-Young
Park Kyung-Hee
Jang Won-Jong
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Abstract
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This study was done to characterize distribution of Rickettsia spp. in ticks in the northwestern and southwestern provinces in the Republic of Korea. A total of 2,814 ticks were collected between May and September 2009. After pooling, 284 tick DNA samples were screened for a gene of Rickettsia-specific 17-kDa protein using nested PCR (nPCR), and produced 88 nPCR positive samples. Of these positives, 75% contained 190-kDa outer membrane protein gene (ompA), 50% 120-kDa outer membrane protein gene (ompB), and 64.7% gene D (sca4). The nPCR products of ompA, ompB, and sca4 genes revealed close relatedness to Rickettsia japonica, R. heilongjiangensis, and R. monacensis. Most Rickettsia species were detected in Haemaphysalis longicornis. This tick was found a dominant vector of rickettsiae in the study regions in the Republic of Korea.
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KEYWORD
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Haemaphysalis longicornis, ompA, ompB, sca4, spotted fever, rickettsia
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