postviral fatigue syndrome /-vīrəl/ [L, post, after, virus, poison, fatigare, to tire; Gk, syn, together, dromos, course] , a condition after a viral infection of chronic muscle fatigue unrelieved by rest. Other symptoms may include visual and hearing difficulties, low-grade fever, stiff neck, urinary frequency, and insomnia. Also called benign myalgic encephalomyelitis, Iceland disease, Royal Free disease.
