Emmons R W, Woodie J D, Laub R L, Oshiro L S
J Am Vet Med Assoc. 1983 Sep 1;183(5):555-8.
Main Drain virus, which is thought to be transmitted normally among rabbits and various rodents by its natural vector, Culicoides variipennis, was isolated repeatedly from brain tissue of a sick horse from Sacramento County, California, and was implicated as the causative agent. Signs of illness were incoordination and ataxia, stiff neck, head pressing, inability to swallow, fever, and tachycardia.
