Epidemiological Characteristics of Tick-Borne Encephalitis in the Sverdlovsk District over a 20-Year Period

Relevance. Despite the ongoing program of mass vaccination tick-borne encephalitis (TBE) for more than 20 years in Sverdlovsk district, incidence rate TBE continues to exceed average Russia and Ural Federal region. Aim. To analyze main indicators manifestation epidemic process territory district under conditions planned over a 20-year period (2002–2021). Materials methods. The article uses data from federal regional statistical observations, reporting materials Department Rospotrebnadzor 2002-2021, methods analysis. Results discussion . During study (2002-2021), 3861 cases were registered while highest was detected 2005 – 10.1 per 100 thousand population, lowest 2020 1.0 population. share vector-borne mechanism 78.4%, unidentified path 20.1%, alimentary 1.5%. Analysis seasonal distribution showed that is recorded April November. Cases all age groups, including child Most often, people aged 60 old older (24.6%) ill with TBE. Among children's largest fell on children 7–14 (5.4%). Men working prevailed among patients (66.0%). mainly unvaccinated population (81.5%) predominance urban (86.1%). Officials predominated sick persons 29.8%, pensioners made up 22.3%, unemployed 19.8%. Persons whose work professionally connected forest only 0.6%. has led decrease proportion severe moderate forms diseases (focal 9.8% meningeal 24.0%) an increase febrile (33.8%) atypical (32.4%). Deaths during studied adult Conclusions. be tense natural focus constantly contingents different social groups. In absence highly effective etiotropic drugs treatment TBE, strategy reducing development deaths