[The structure and functioning of tick-borne encephalitis foci in the southern Far East].

Based on a statistic data on cases of different clinical forms of the tick-born encephalitides in the Russian Far East during 35 years passed it is stated that ecological relations in natural foci of this infection have clear and stable spatio-temporal specific features and hierarchic structure. The epidemic potential of the tick-born encephalitis foci is determined in a great degree by conditions of a cold period of year.