What is the prevalence of West Nile virus infection in myasthenia gravis?

Updated: Apr 02, 2018
  • Author: Jess D Salinas, Jr, MD; Chief Editor: Elizabeth A Moberg-Wolff, MD  more...
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Answer

A study by Greco et al suggested that West Nile virus infection could, in predisposed persons, contribute to the development of myasthenia gravis. In a study of 29 patients with myasthenia gravis, the investigators found that 17% of subjects demonstrated anti–West Nile virus immunoglobulin G (IgG), although none of the patients apparently had clinical signs or symptoms of the virus. [30]


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