title: [Division of tick-borne encephalitis virus distribution area into regions. 1. Approaches and principles].
mesh_terms: D001208:Asia; D004669:Encephalitis Viruses, Tick-Borne / Q000302:isolation & purification*; D004675:Encephalitis, Tick-Borne / Q000382:microbiology*; D004812:Epidemiologic Methods; D005060:Europe; D006801:Humans; D007303:Insect Vectors; D013987:Ticks / Q000382:microbiology; D014586:USSR
vernacular_title: Raĭonirovanie areala virusa kleshchevogo entsefalita. Soobshchenie I. Podkhody i printsipy.