Encephalitis is the name for an inflammation of the brain caused by an infection or the immune system. Tick-borne encephalitis (TBE) - an infection spread by tick bites - is endemic in mainland Europe, Scandinavia and Asia. If you are likely to be travelling to a country where TBE is common, there is a vaccination which can protect you against the virus.
This is a companion discussion topic for the original article at https://patient.info/news-and-features/do-you-need-to-worry-about-tick-borne-encephalitis