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Vector Borne Zoonotic Dis. 2013 Jan;13(1):6-11. doi: 10.1089/vbz.2012.0963. Epub 2012 Nov 30.

Specific molecular detection of Anaplasma sp. closely related to Anaplasma phagocytophilum in ixodid ticks and cattle in a pastureland in Hokkaido, Japan.

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1
Department of Veterinary Clinical Sciences, Obihiro University of Agriculture and Veterinary Medicine, Inada Cho, Hokkaido, Japan.

Abstract

Recent molecular analyses of the Anaplasma sp. closely related to Anaplasma phagocytophilum (previously believed to be A. phagocytophilum) in Japan have clarified its distinct phylogenetic position. PCR methods relying on 16S rRNA- and P44/MSP2-based primers designed to detect this species have low sensitivity and specificity. In this study, a highly sensitive and specific nested PCR method using newly designed primers based on heat-shock operon gene (groEL) was developed to detect this species. The method was later used in an epidemiological study testing DNA samples from 85 Ixodid ticks (collected by flagging) and 50 cattle from the same pastureland in Nakaosobetsu, Hokkaido, Japan. Results revealed prevalence rates of 2.4% (2 of 85) in ticks and 2% (1 of 50) in cattle. The present study also reported the first molecular detection of the Anaplasma sp. closely related to A. phagocytophilum in Japan in H. douglasii, and established a new reliable PCR method that detects this Anaplasma sp. closely related to A. phagocytophilum in Japan.

PMID:
23199272
DOI:
10.1089/vbz.2012.0963
[Indexed for MEDLINE]
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