[Serious Headache].

A patient with fever, headache and discrete neurologic symptoms developed a coma followed by severe paralysis. The cause was a tick-borne encephalitis. In the follow-up, the patient required supportive care on the intensive care unit for almost two months and further on, a rehabilitation of almost seven months was needed. The patient has not been vaccinated, even though he fulfilled the criteria for the recommendation of vaccination because he occasionally visited areas at risk.