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Ongoing circulating vaccine-derived poliovirus (cVDPV) outbreaks (worldwide, July 2019 to February 2020)

Data as of March 24 to 27, 2020. Abbreviations: cVDPV1 = cVDPV type 1; cVDPV2 = cVDPV type 2. (Source: Alleman MM, Jorba J, Greene SA, et al. Update on vaccine-derived poliovirus outbreaks--worldwide, July 2019 to February 2020. MMWR Morb Mortal Wkly Rep 2020;69[16]:489-95.)

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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