Analysis of the causes of a stably high incidence of tick-borne borreliosis in rural districts of Udmurtia

Aim. To identify of the most active centers of infection of tick-borne borreliosis in Udmurtia and to determine the causes of high morbidity level. Methods. Conducted was a comparative analysis of the dynamics of the incidence of tick-borne borreliosis in various administrative districts of Udmurtia, taking into consideration the confinedness to the landscape and geographical areas, identified were the risk groups for tick-borne borreliosis. The incidence tick-borne borreliosos and the indices of spontaneous infection of donors with borreliae in various landscape-geographical zones of Udmurtia were subjected to a comparative assessment, studied was the medical and economical effectiveness of preventive measures. The study was carried out by conventional methods. Results. It was established that in all the administrative districts of Udmurtia at risk of tick-borne borrelliosis are schoolchildren, pensioners and unemployed people, the risk of the disease increases after 41 year of age regardless of gender or place of residence. Established was a higher medical and economical effectiveness of emergency chemoprophylaxis of borreliosis in the first 48 hours after the tick bite in comparison with the currently used acaricidal treatment. Conclusion. The reasons for high incidence of tick-borne borreliosis in rural districts of Udmurtia - low appealability of the population for medical care after tick bites and a lack of motivation for chemoprophylaxis in school children, pensioners and unemployed people.

morbidity, tick-borne borreliosis, risk groups, emergency chemoprophylaxis