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Total number and cumulative incidence of West Nile virus neuroinvasive disease cases by county of residence, United States, 2009-2018

A total of 12,835 neuroinvasive cases were reported in the United States from 2009 to 2018. Cutpoints determined by Jenks natural breaks classification method, then rounded for ease of display. (Source: McDonald E, Mathis S, Martin SW, Staples JE, Fischer M, Lindsey NP. Surveillance for West Nile Virus Disease - United States, 2009-2018. MMWR Surveill Summ 2021;70(1):1-15.)

Related Media

Associated Disorders

  • Encephalitis
  • Meningitis
  • Meningoencephalitis
  • Poliomyelitis