Anaplasma phagocytophilum is the agent of tick-borne fever of ruminants and is transmitted by Dermacentor silvarum,
Haemaphysalis concinna, H.
persulcatus, and
Haemaphysalis concinna ticks in Asia (1,5).
tested (%) Tick Ixodes persulcatus 6/316 (1.9)
Haemaphysalis concinna 2/187 (0.8) Dermacentor silvarum 0/13 (0) Total 8/516 (1.6) Rodent Clethrionomys rufocanus 5/109 (4.6) Rattus norvegicus 2/35 (5.7) Apodemus peninsulae 0/30 (0) Apodemus agrarius 0/25 (0) Mus musculus 0/9 (0) Tamias sibiricus 1/3 (33.3) Total 8/211 (3.8)
persulcatus, Dermacentor silvarum,
Haemaphysalis concinna, H.
sibirica, the agent of North Asian tick typhus, has been found in numerous different genera and species, including Hyalomma spp., Dermacentor spp., and
Haemaphysalis concinna (20).