WHO updates polio immunization coverage metadata for first-dose IPV

WHO has published a metadata registry entry for "Polio vaccine: Inactivated first-dose polio vaccine (IPV1) immunization coverage among 1-year-olds (%) (WUENIC)." The entry explains that the indicator measures the percentage of surviving infants who received one dose of inactivated polio-containing vaccine in a given year and describes the administrative and household survey methods used to estimate coverage. [2] Why it matters: Polio immunization coverage is a core marker of routine vaccination performance and eradication progress. WHO’s methodology page matters because it defines how countries’ coverage figures are constructed, interpreted, and compared across time. [2] Key insights: WHO describes immunization coverage estimates as a tool for monitoring service coverage and guiding disease eradication and elimination efforts. [2] | The indicator specifically measures the percentage of surviving infants who received one dose of inactivated polio-containing vaccine in a given year. [2] | WHO says estimates can rely on administrative records or household surveys such as EPI cluster surveys, MICS, and DHS. [2] | The methodology notes that country data are reviewed individually and may be updated if new information becomes available. [2]