Tick-borne encephalitis and Lyme-borreliosis in Republic of Karelia (modern clinical and epidemiological aspects )

744 patients with tick-borne encephalitis (TBE) and 698 patients with Lyme-borreliosis (LB) during a period of 16 years ( 19982013) were analyzed. The highest incidence of these infections was registered in 2003-2004. Three TBE clinical forms (aseptic meningitis in most cases) were revealed in the acute period. The peripheral nervous system often suffered from LB early in the course of the disease. In view of the high incidence of the disease, the vaccination against TBE and emergency prophylactic treatment of these infections is recommended for all subjects living, working, and travelling in endemic districts of the Republic of Karelia.