Louping ill

Overview
Louping-ill (also known as Ovine Encephalomyelitis, Infectious Encephalomyelitis of Sheep, Trembling-ill) is an acute viral disease primarily of sheep that is characterized by a biphasic fever, depression, ataxia, muscular incoordination, tremors, posterior paralysis, coma, and death. Louping-ill is a tick-transmitted disease whose occurrence is closely related to the distribution of the primary vector, the sheep tick Ixodes ricinus.

Etiology
Louping ill is caused by RNA virus called Louping ill virus. Louping ill virus belongs to genus Flavivirus, family Flaviviridae.