Comprehensive assessment of the epizootic situation of trichinosis in Novosibirsk region

The paper presents information on the spatiotemporal features of the functioning of the trichinellosis parasitic system in the Novosibirsk region. It has been established that the Novosibirsk region is unfavorable for human and animal trichinellosis, where the disease was recorded almost annually during the research period (2002–2023). The dynamics of the incidence of trichinellosis in humans and animals is undulating and characterized by a pronounced downward trend. The ranking of the territory by the level of morbidity of the population and animals revealed a mosaic of the spread of the pathogen. Of the 30 administrative districts, 23 are affected by trichinellosis, including 9 (30 %) with human and animal trichinosis, 16 (53,3 %) with animal trichinosis, and 17 (56,6 %) with human trichinosis. The pathogen circulates among animals of 6 species. The largest contribution to the structure of animal infection with trichinosis is made by pigs – 65.9 % (120 cases) and badgers – 19.2 % (35 cases). In bears, wild boars and rats, the disease occurs sporadically, which is due to the lack of research on these animals. For the first time, a capsule-free trichin species, T. pseudospiralis, was isolated for the region in the skeletal muscles of domestic chickens (Garkavi, 1972). The invasion of poultry by the causative agent of trichinellosis was 10.0%. The main aspects of parasitological monitoring as a tool for epizootological control of topical anthelminthiasis in the Novosibirsk region are highlighted.

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