Babesiosis spread analysis among dogs in Krasnoyarsk

The aim of research is to study the spread, seasonality of occurrence and severity of babesiosis in dogs in Krasnoyarsk. The clinical part of the work was carried out in the “Panacea” veterinary clinic in Krasnoyarsk from 2018 to 2020. The objects of the study were both domestic and stray dogs that entered the clinic for veterinary care. The diagnosis of babesiosis was established in a complex manner, based on anamnestic and epizootic data, the results of clinical examination and microscopy of blood smears according to Romanovsky-Giemsa, for the presence of blood parasites - babesia. Seasonal dynamics was established based on the results of calculating the extent of invasion. As a result of the work done, 226 dogs with babesiosis were registered, of which 83.2 % are stray and 16.8 % are domestic dogs. The number of ticks removed from one stray animal averaged 45.7 ticks, and 1.4 ticks from a domestic animal. Babesiosis is registered everywhere in the territory of Krasnoyarsk and in the suburbs. When studying the seasonal dynamics, the dependence of this disease on the natural and climatic conditions of the year was noted. Seasonal dynamics of the disease has two distinct peaks: May-June and September-October, which is associated with favorable conditions for the formation of stable natural foci of ixodofauna. When studying the sexual pre-disposition of dogs to the disease, no significant differences were found; babesiosis was recorded in 124 males and 102 females. In terms of the severity of the course, the disease was severe in 24.8 % of dogs, moderately in 59.3 and mild in 15.9 %. The severe form was recorded mainly in stray dogs.