How common is tbe?

TBE incidence. Tick borne encephalitis, while common in europe, is very rare in the U.S. 5 confirmed cases were diagnosed in the U.S. Between 2000 and 2009. All were in travelers who had either been to europe or china recently. All 5 survived without chronic complications.
Are you talking . Tick-borne encephalitis? It's a viral disease that attack the central nervous system. Transmitted by the bite of several species of ticks. Europe an russia report about 5, 000 cases a year. Not present in usa.