Abstract
We report a patient presenting with myelitis after respiratory symptoms. A high level of antibodies to influenza A virus was measured in serum and cerebrospinal fluid (CSF), and the serum/CSF antibody ratio was 1.7, suggesting specific antibody production in the central nervous system. Magnetic resonance imaging of the spinal canal showed a contrast-enhanced swelling on the cervical medulla. Such a case would have warranted the use of antiviral therapy and calls to mind the neurotropic potential of influenza A viruses.
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