Ixodid tick-borne borreliosis in the Republic of Tatarstan (analysis of morbidity)
Aim. To conduct a retrospective analysis of the incidence of ICD in the territory of the RT for the period 2007-2017. and its structure for the period 2011-2016. to improve the epidemiological surveillance of the SDS. Materials and methods. Maps of epidemiological examination of the foci of infectious disease were used (f. 357-y «Map of epidemiological examination of the focus of an infectious disease»), forms of state statistical reporting (f. 2 «Information on infectious and parasitic diseases», p. 27 «Information on disinfection activities», as well as the laboratory data of the FBU» Center for Hygiene and Epidemiology in the Republic of Tatarstan (Tatarstan). A retrospective analysis of the incidence of ICD for the period 2007 and 2017 and its structure for the period 2011-2016. Results and discussion. The article presents an analysis of the incidence of ixodic tick-borne borreliosis and its structure in the Republic of Tatarstan for 2011-2017. Analysis based on the forms of state statistical reporting, as well as the laboratory data of the FSEU «Center for Hygiene and Epidemiology in the Republic of Tatarstan (Tatarstan)», showed that it has a wavy character with a tendency to decrease. The highest incidence rates were registered in the eastern regions of the republic. Relatively high morbidity rates were registered in 2007, 2010 and 2015. The activity of anthropophilic phases of development of ticks-the main carriers of ixodes tick-borne borreliosis, determines the strict seasonality of the disease. The peak incidence is in June-July and September-November months. Increased mobility of the population due to the increased availability of people with vehicles, increased the accessibility of people to the natural habitat of carriers of tick-borne infections. Most of the sick (86%) are urban dwellers, most of them are residents of large cities. Conclusions. The article proves the existence and activity of natural foci of tick-borne borreliosis in the Republic of Tatarstan and confirms the need for further improvement of epidemiological surveillance of infections transmitted by ticks.