[The tick-borne encephalitis in Poland].

The paper presents an epidemiological analysis of 816 cases of tick borne encephalitis reported in Poland since 1970. A particular attention was paid towards 240 cases notified in 1993 with 94% confirmed serologically. Infections occurred between May and November, particularly in July, August and October. Encephalitis prevailed in persons 20-49 years old (65%) and most of them occurred in males (59%). In endemic areas infections among towns dwellers prevailed.