Nature
Tick-borne encephalitis (TBE) is a viral infection usually transmitted by tick bites, though it can also be acquired by ingesting unpasteurized milk or milk products from cows, goats or sheep. Headache, fever and other flu-like symptoms begin suddenly 1 to 2 weeks after contact. These symptoms resolve after about a week, but in some cases the illness resumes after a few days of apparent recovery. This second phase can be very serious, with fever accompanied by neurological symptoms such as seizures, paralysis and coma resulting from brain infection.