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A relapsing fever group Borrelia sp similar to Borrelia lonestari found among wild sika deer (Cervus nippon yesoensis) and Haemaphysalis spp. ticks in Hokkaido, Japan

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Title: A relapsing fever group Borrelia sp similar to Borrelia lonestari found among wild sika deer (Cervus nippon yesoensis) and Haemaphysalis spp. ticks in Hokkaido, Japan
Authors: Lee, Kyunglee Browse this author
Takano, Ai Browse this author
Taylor, Kyle Browse this author
Sashika, Mariko Browse this author
Shimozuru, Michito Browse this author
Konnai, Satoru Browse this author →KAKEN DB
Kawabata, Hiroki Browse this author →KAKEN DB
Tsubota, Toshio Browse this author →KAKEN DB
Keywords: Borrelia lonestari-like
Haemaphysalis spp.
Sika deer
Ticks
Hokkaido
Issue Date: Oct-2014
Publisher: Elsevier
Journal Title: Ticks and Tick-borne Diseases
Volume: 5
Issue: 6
Start Page: 841
End Page: 847
Publisher DOI: 10.1016/j.ttbdis.2014.06.006
PMID: 25108784
Abstract: A relapsing fever Borrelia sp. similar to Borrelia lonestari (herein referred to as B. lonestari-like) was detected from wild sika deer (Cervus nippon yesoensis) and Haemaphysalis ticks in the eastern part of Hokkaido, Japan. The total prevalence of this Borrelia sp. in tested deer blood samples was 10.6% using conventional PCR and real-time PCR. The prevalence was significantly higher in deer fawns compared to adults (21.9% and 9.4%, respectively). Additionally, there was significant regional difference between our two sampling areas, Shiretoko and Shibetsu with 17% and 2.8% prevalence, respectively. Regional differences were also found in tick species collected from field and on deer. In the Shiretoko region, Haemaphysalis spp. were more abundant than Ixodes spp., while in Shibetsu, Ixodes spp. were more abundant. Using real-time PCR analysis, B. lonestari-like was detected from 2 out of 290 adult Haemaphysalis spp. ticks and 4 out of 76 pools of nymphs. This is the first report of a B. lonestari-like organism in Haemaphysalis spp. ticks, and the first phylogenetic analysis of this B. lonestari-like organism in Asia. Based on our results, Haemaphysalis spp. are the most likely candidates to act as a vector for B. lonestari-like; furthermore, regional variation of B. lonestari-like prevalence in sika deer may be dependent on the population distribution of these ticks. (C) 2014 Elsevier GmbH. All rights reserved.
Type: article (author version)
URI: http://hdl.handle.net/2115/57634
Appears in Collections:獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 坪田 敏男

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