Surveillance To Track Progress Toward Poliomyelitis Eradication - Worldwide, 2021-2022
Description
Since the Global Polio Eradication Initiative (GPEI) was established in 1988, the number of wild poliovirus (WPV) cases has declined by >99.9%, and WPV serotypes 2 and 3 have been declared eradicated (1). By the end of 2022, WPV type 1 (WPV1)
