Natural and Nosocomial Infection in a Patient with West Nile Encephalitis and Extrapyramidal Movement Disorders

Solomon, Tom; Fisher, Ann F.; Beasley, David W.C.; Mandava, Pitchaiah; Granwehr, Bruno P.; Langsjoen, Hans; Da Rosa, Amelia P. Travassos; Barrett, Alan D.T.; Tesh, Robert B.
June 2003
Clinical Infectious Diseases;6/1/2003, Vol. 36 Issue 11, pe140
Academic Journal
Since its first recognition in North America in 1999, West Nile virus (WNV) has spread rapidly across the continent, but in many communities, rapid diagnostic tests for detection of WNV infection are not fully available. We describe a patient with extrapyramidal movement disorders and changes in the basal ganglia noted on magnetic resonance images that are characteristic of other flavivirus encephalitides and may help in the recognition of patients with West Nile encephalitis. Detailed molecular analysis suggested that, although our patient received a blood transfusion infected with WNV, the virus that caused his initial infection and encephalitis was probably acquired naturally from a mosquito.


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