Korean J Parasitol.
2019 Apr;57(2):161-166. 10.3347/kjp.2019.57.2.161.
Distribution of Rickettsia spp. in Ticks from Northwestern and Southwestern Provinces, Republic of Korea
- Affiliations
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- 1Viral and Rickettsial Diseases Department, Naval Medical Research Center, Silver Spring, MD 20910-7500, USA.
- 2Department of Microbiology, Konkuk University School of Medicine, Seoul 05029, Korea. wjjang@kku.ac.kr
- 3Research Institute of Medical Science, Konkuk University School of Medicine, Seoul 05029, Korea.
- 4Force Health Protection and Preventive Medicine, Medical Department Activity-Korea/65th Medical Brigade, Unit 15281, APO AP 96271-5281, USA.
- KMID: 2448147
- DOI: http://doi.org/10.3347/kjp.2019.57.2.161
Abstract
- 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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