SPATIAL PATTERNS OF TRICHINOSIS DISTRIBUTION IN THE SOUTH OF THE RUSSIAN FAR EAST

Abstract

The registered cases of trichinosis among the population of four federal entities of the south of the Far East (Amur Region, Jewish Autonomous Region, Transbaikal Territory and Khabarovsk Territory) in 2000-2020 were considered. A spatial analysis, mapping and visualization was carried out on the basis of data derived from state reports of the Rospotrebnadzor on the number of cases and the frequency of their registration in the context of municipalities. A typological classification of territories has been built using the developed scoring and the identification of statistically significant “hot” and “cold” spots has been provided. It has been established that the incidence of trichinosis in humans is associated with both the consumption of meat of wild animals and domestic pigs, which, apparently, is associated with the Trichinella species prevailing in each specific area. Regions with stably recorded incidence have been identified, however, the establishment of more obvious spatial patterns of the spread of trichinosis is hindered by the insufficiency and incompleteness of published data, in particular, the lack or inaccessibility of information on the Trichinella species composition and the fragmentation of data on the results of epidemiological investigations. The tested method gives an idea of the levels of risk of infection with trichinosis for the population of the region and can be used for more in-depth studies in the future. Key words: trichinosis, spatial statistics, risk assessment, hot and cold spots.