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Bar graph indicating the number of wild poliovirus cases among countries with endemic polio and regions with recent polio outbreaks, by month and year of onset (January 2012 to April 2014)

Data as of May 20, 2014. (Source: Moturi EK, Porter KA, Wassilak SG, et al. Progress toward polio eradication--worldwide, 2013-2014. MMWR Morb Mortal Wkly Rep 2014;63[21]:468-72.)

Associated Disorders

  • Aseptic meningitis
  • Bulbar polio
  • Bulbospinal polio
  • Infantile paralysis
  • Nonparalytic polio
  • Paralytic polio
  • Polioencephalitis
  • Post-polio progressive muscular atrophy
  • Post-polio syndrome
  • Spinal paralytic polio