Contamination of fesces of small domestic animals Yersinia enterocolitica in cities of Ukraine
Abstract
The paper presents materials on the results of the study of canine and feline fesces for contamination by the causative agent of intestinal yersiniosis Yersinia enterocolitica. Yersinia are considered typical saprophytes, and intestinal yersiniosis is a typical representative such infections, and therefore has all the stages of the epizootic process that are inherent in this group of diseases. In addition, intestinal yersiniosis is a zoonosis. From these positions, the paper considers the contamination of environmental objects with Yersinia enterocolitica. Laboratory tests were performed utilizing generally accepted methods. Bacteriological, bacterioscopic, serological and biochemical research methods were used to identify isolates. The study shows that Yersinia enterocolitica can be isolated from canine and feline feces sample 10 to 26.6% and 6.7 to 14.3% respectively, which were selected from territories, adjacent to Ukrainian cities. Yersinia enterocolitica cultures were represented by several biovars, among which the biovar 1 dominated. As a result of studies of 180 samples of dog feces, 33 cultures (18.3%) of Y. enterocolitica were isolated, of which 18 (54.6%) cultures were classified as biovar 1, 11 (33.4%) cultures as biovar 2, biovar 3 - 2 (6%) culture, to biovar 4 - 2 (6%) culture and none to biovar 5. From 171 collective feline samples, 15 cultures of Y. enterocolitica (8,8%) were isolated, which were attributed to several biovars. Thus, 8 isolates (53.3%) were assigned to biovar 1, 5 (33.3%) cultures to biovar 2 and 2 cultures (13.4%) to biovar 3. The dominant Y.enterocolitica serovar in cats and dogs in Ukraine are O: 9, a smaller share belongs to O: 6.30, and there are isolated cases of O:3 serovar contamination. Issues of human and small domestic animal biosafety regarding the spread of the causative agent of intestinal yersiniosis and the formation of local urban foci of infection have been raised
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