Acta Biomedica Scientifica (Sep 2012)

COMPARATIVE STUDY OF ANAPLASMA IN JAPAN AND OTHER COUNTRIES

  • T. .. Masuzawa,
  • N. .. Ohashi,
  • M. A. Khasnatinov,
  • G. A. Danchinova,
  • L. I. Ivanov,
  • T. .. Fukui,
  • Y. .. Okamoto,
  • M. J. Pan,
  • N. .. Koizumi

Journal volume & issue
Vol. 0, no. 5(1)
pp. 155 – 157

Abstract

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To determine the reservoir animals and vector ticks for Anaplasma phagocytophilum in Far East Asia, which causes human granulocytic anaplasmosis, we analyzed tissue samples from deer and boars in Japan rodents in Taiwan and. Ixodes persulcatus in Russia by PCR-targeted. to 16S rDNA. Anaplasma species including Anaplasma bovis and. Anaplasma centrale-infected wild deer and boars were detected. The detection rates for A. phagocytophilum, A. bovis and. A. centrale in deer were 15,6 %, 21,9 % and. 37,5 %, respectively. These infection rates in wild boar were 3,6 %, 17,9 % and. 3,6 %, respectively. Wild rodents captured in Taiwan were positive for A. phagocytophilum. and. A. bovis. Prevalence rate of A. phagocytophilum. on I. persulcatus ticks in Irkutsk and. in Khabarovsk were 6,3 % and. 11,3 %, respectively. The 16SrDNA sequences detected from Russian ticks were identical to those of A. phagocytophilum. detected, in US and. Europe, and. from tick Ixodes ovatus and. Ixodes persulcatus in Japan. However the sequence detected from deer and boars in Japan were identical to sequences previously detected from deer and cattle in Japan, and. showed. less similarity (98,6 %) with typical A. phagocytophilum.. Sequences detected from wild rodents collected in Taiwan showed higher similarity (99,7 %) with typical A. phagocytophilum but formed the branch from those of A. phagocytophilum. detected in US and Europe. The finding suggests that the A. phagocytophilum-related sequence detected from deer and boars in Japan, and. wild rodents in Taiwan were different from those of typical A. phagocytophilum. found in Ixodid ticks.

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