Abstract

Pathogens transmitted by ticks cause several important diseases in humans, including Lyme disease, the incidence of which has been increasing in Belarus. Between April and October 2017, a total of 504 questing Ixodid ticks (77% Ixodes ricinus and 23% Dermacentor reticulatus) were collected from six regions and city of Minsk, in Belarus. All ticks were analyzed by RT-PCR amplification for the presence of Borrelia burgdorferi sensu lato, tick-borne encephalitis virus (TBEV), Anaplasma phagocytophillum, Ehrlihia muris, and Borrelia miyamotoi. B. burgdorferi s.l. and Rickettsia spp. were the most commonly detected tick-borne pathogens, with prevalence rates of 31.08% and 33.7%, respectively. A. phagocytophillum was found in 104 (20.63%), and 107 (21.2%) ticks were positive for E. muris. TBEV was detected in 83 (16.47%). Circulation of Borrelia miyamotoi spirochete in I. ricinus ticks in Brest, Gomel, and Minsk region was detected for the first time. Our data provide a basis for further studies to determine the distribution and abundance of different tick species in Belarus and therefore a capacity to predict where cases of important tick-borne diseases may occur.

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