Poliomyelitis reported cases and incidence

Reported cases and incidence of Poliomyelitis are derived from official country reporting to the World Health Organization (WHO). Data are updated and made available annually on the 15th of July.

These data are used to provide global trends over time, and to inform the Strategic Advisory Group of Experts on Immunization (SAGE) and other advisory bodies to make evidence-based decisions as they deliberate different policies (for example, the need for booster doses, and targeted ages).