Case Presentation: West Nile (WN) virus, a member of the Japanese encephalitis virus antigenic complex, is the leading cause of mosquito-borne disease in the continental United States. Approximately 1 out of 250 patients develop neuroinvasive disease including encephalitis, meningitis, acute flaccid paralysis and opsoclonus-myoclonus syndrome (OMS). Sparse data exist regarding potential treatments for WN virus [...]