[Viral diphasic meningoencephalitis in the upper Volga region].
D004675:Encephalitis, Tick-Borne; D006801:Humans; D008590:Meningoencephalitis / Q000453:epidemiology*
MENINGOENCEPHALITIS/epidemiology
O dvukhvolnovom virusnom meningo-entsefalite v verkhnem Povolzh'e.