Japanese Journal of Infectious Diseases
Online ISSN : 1884-2836
Print ISSN : 1344-6304
ISSN-L : 1344-6304
Short Communications
Molecular Detection of Anaplasma phagocytophilum from Larvae of Haemaphysalis longicornis in Ibaraki, Japan
Yuichi FukuiHisashi Inokuma
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2019 Volume 72 Issue 6 Pages 423-425


We collected 1,084 ticks by flagging vegetation in Tsukuba and Moriya (Ibaraki, Japan), where several cases of canine granulocytic anaplasmosis were reported. The DNA of the collected ticks was molecularly examined for infection with the family Anaplasmataceae. Twenty-six positive samples of Anaplasmataceae-specific PCR of partial 16S rRNA gene were subjected to semi-nested PCR, covering the divergent regions, the gene, and sequence analysis. Anaplasma phagocytophilum was detected in 3 pools of Haemaphysalis longicornis larvae and A. bovis from a H. flava male. Sequences of both amplicons had high homologies to those from dogs in our previous studies in Ibaraki. These results suggest that Haemaphysalis ticks are candidate vectors of A. phagocytophilum and A. bovis in Ibaraki, Japan.

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