Myasthenia gravis following viral infection.

The pathogenesis of myasthenia gravis is autoimmune, the real etiology, however, remains unknown. Virus has been suggested as an etiological agent of the disease. In this study we present 5 myasthenic patients, whose symptoms began a few weeks after a proven viral infection. The possibility of viral infection as etiology of myasthenia gravis is raised, and the mechanisms discussed.