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Reported cases of paralytic polio from vaccine-derived viruses, worldwide

Some cases of paralytic polio arise from vaccine-derived strains that have reverted to a form that can cause disease. There are three vaccine-derived strains of paralytic polio: VDPV1, 2, and 3. This shows cases of circulating vaccine-derived polioviruses. (Source: Dattani S, Spooner F, Ochmann S, Roser M. Polio. First published in November 2017, and last updated in May 2024. Available at: ourworldindata.org/polio. Accessed May 2024. Based on U.S. Public Health Service, U.S. Centers for Disease Control and Prevention, and World Health Organization. Creative Commons Attribution 4.0 International [CC BY 4.0] license, creativecommons.org/licenses/by/4.0.)

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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