Tick-borne encephalitis (TBE) is a viral disease spread by ticks. The virus can also be transmitted in unpasteurised milk. More than half of the infections are asymptomatic. Approximately one week after being bitten by a tick, the patient develops a fever that lasts slightly less than a week. In one third of the cases, the disease continues after a fever-free period of 3–21 days as recurring high fever and central nervous system symptoms. The symptoms go on for a long time for some patients. In Finland, the ticks that spread the disease are primarily found on the Åland Islands and coastal areas. National Institute of Health and Welfare defines risk areas each year and the residents or long-term residents are vaccinated in the National Vacciantion Programme. Ticks also spread Lyme disease, for which there is no vaccine.

• Lääkeinfo.fi: Encepur for adults  and children (in Finnish)
  • The National Vaccination Programme covers the first three doses for permanent residents and summer residents (aged three and up) on risk areas defined annually.
• Lääkeinfo.fi: TicoVac for adults and children (in Finnish)
• THL, Infectious diseases: Tick-borne encephalitis (in Finnish)
• THL, Traveller’s Health Guide: Tick-borne encephalitis (in Finnish)
• THL, Infectious diseases and vaccinations: TBE vaccine