1. Tick-borne encephalitis: 2011, ProMED-mail post, Germany, http://www.promedmail.org . From: Martin Haditsch leonding@travelmed.at
2. Tick-borne encephalitis: 2011, A ProMed-mail post, Austria, http://www.promedmail.org . From: Martin Haditsch [leonding@travelmed.at]
3. Statistical data base: Registry of communicable diseases. 2012, http://www3.ktl.fi/stat/ . National Public Health Institute, Helsinki
4. Holmgren EB, Forsgren M: Epidemiology of tick-borne encephalitis in Sweden 1956–1989: A study of 1116 cases. Scand J Inf Dis. 1990, 22: 287-295. 10.3109/00365549009027050.
5. Blaskovic D: The public health importance of tick-borne encephalitis in Europe. Bull Wld Hlth Org. 1967, 36 (Suppl. 1): 5-13.