The article analyzes zoonoses -diseases transmitted to humans from rodents. The object of the study were rodents in urbanized ecosystems of Kirov-city from 2018 to 2020. The relevance of this topic is due to the fact that in the Kirov region, where the studies were conducted, the helminth fauna of rodents of residential areas has not been studied. All rodents were examined by full helminthological autopsy according to Skryabin's methods. A total of 183 rodent carcasses were subjected to full biological analysis. As a result of the research it was found out that synanthropic and other species of rodents in urbanized ecosystems of Kirov region are involved in the spread of the following zoonoses which are dangerous for people (Toxocariasis, Alariosis). The dominant species of rodents in urbanized ecosystems of Kirov region were identified: Mus muskulus, Rаttus nоrvеgicus, Clеthriоnоmys glаrеоlus The Micrоtus аrvаlis sp., as an invasive species in the area, had the highest species composition of parasitic worms (9 species). The analysis of the helminth fauna of rodents resulted in the conclusion about specificity of some helminth species in certain rodent species, which is expressed in polygonality, i.e., it can be regarded as ecological adaptation of helminthes in relation to this group of hosts.
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