Chart · Our World in Data
ChartOur World in Data
Number of one-year-olds who have not received the inactivated polio vaccine
The inactivated polio vaccine (IPV1) protects children against polioviruses types 1, 2 and 3. IPV does not replace the Oral Polio Vaccine (OPV), but is used with OPV to strengthen a child’s immune system and protect them from polio.
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WHO & UNICEF (2025); UN, World Population Prospects (2024)
Attribution: WHO/UNICEF
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