Far Eastern tick-borne encephalitis

**Long definition:** This is a viral infectious disease involving the central nervous system. The disease most often manifests as meningitis, encephalitis, or meningoencephalitis. This disease originates in the Far East. Far Eastern tick-borne encephalitis is characterized by abrupt onset of fever, severe headache, nausea and vomiting and severe back pain often associated with focal epilepsy and flaccid paralysis, especially of the shoulder girdle. Such paralysis may be permanent