An infectious viral disease of sheep that is transmitted by the tick Ixodes ricinus and affects the nervous system, causing galloping and trotting by little leaps and often prolonged trembling.

• 震颤病一种在绵羊身上发作的病毒性传染病，由虫螨传播并能影响神经系统，绵羊得病后会小步飞跑和疾走，经常伴有长时间的颤抖