Post-infectious encephalomyelitis associated with St. Louis encephalitis virus infection.

Abstract

Neurologic illness associated with acute St. Louis encephalitis, West Nile, and Japanese encephalitis virus infection includes acute aseptic meningitis, encephalomyelitis, and a poliomyelitis-like syndrome. Few post-infectious immune-mediated neurologic events associated with flaviviral infection have been reported. The authors report on a woman with apparent post-infectious encephalomyelitis associated with recent St. Louis encephalitis virus infection, suggesting that neurologic illness from flaviviruses may also be seen in the post-infectious period following mild clinical illness.