[Role of autoimmune processes in the pathogenesis of post-vaccinal lesions of the nervous system].

Subcutaneous sensitization of guinea pigs with -vaccine, and also an intracardiac injection of smallpox or measles vaccine induced production of brain autoantibodies, whereas subcutaneous or intradermal immunization of the animals with liver viral vaccines was not accompanied by the formation of autoantibodies and development of the pathological processes in the nervous system tissue. tthe greatest changes in the brain tissue in the form of circulatory disturbances and inflammatory-dystrophic phenomena in combination with high autoantibody titres in the blood were noted in intracardiac injection of smallpox vaccine and in subturbancessensitization with AK-Vaccine and the least (short-term circulatory disturbances, transitory signs of serous meningitis and neuron dystrophy against the background of low blood auto anitbody content)--in intracardiac injection of measles vaccine. Administration of live viral vaccines into the circulation of animals against the background of their sensitization with -vaccine led to reduction of blood autoantibody level coinciding in time with the periods of marked pathomorphological changes in the brain tissue.