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Global circulating vaccine-derived poliomyelitis isolates and response campaigns, January 1 to December 31, 2020

Courtesy of Ondrej Mach and Ajay Kumar Goel, World Health Organization. Abbreviations: AFP, acute flaccid paralysis; bOPV, bivalent oral poliovirus vaccine; cVDPV, circulating vaccine-derived poliomyelitis; ES, environmental surveillance; WHO, World Health Organization. (Source: Modlin JF, Bandyopadhyay AS, Sutter R. Immunization against poliomyelitis and the challenges to worldwide poliomyelitis eradication. J Infect Dis 2021;224[12 Suppl 2]:S398-404.)

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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