SERUM PREVALENCE OF THE BEARS IN THE RUSSIAN FAR EAST TO DIFFERENT PATHOGENS

摘要

The serum prevalence of brown and Asiatic black bears to 14 different pathogens was analyzed; with serum positive bears found to ten different pathogens. The serum prevalence was at the maximum for Candida sp., pseudorabies virus and Dirofilaria sp. Species-specific differences in the serum prevalence to different pathogens were observed for Trichinella sp. and Toxoplasma gondii, but the serum-positive individuals were observed only among brown bears. These variations are suggested to be accounted for by differences in the feeding behavior of the brown and Asiatic black bears and the frequency of contacts with the Amur tiger and its kills.