{"entity":{"iso2":"CM","iso3":"CMR","name":"Cameroon","slug":"cameroon"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"ipv1-number-unvaccinated","source":"WHO & UNICEF (2025); UN, World Population Prospects (2024) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/ipv1-number-unvaccinated","title":"Number of one-year-olds who have not received the inactivated polio vaccine","unit":"one-year-olds"},"observations":[{"date":"2015-01-01","value":567065.0},{"date":"2016-01-01","value":236555.0},{"date":"2017-01-01","value":269359.0},{"date":"2018-01-01","value":276926.0},{"date":"2019-01-01","value":290609.0},{"date":"2020-01-01","value":268133.0},{"date":"2021-01-01","value":261887.0},{"date":"2022-01-01","value":264386.0},{"date":"2023-01-01","value":258386.0}],"summary":{"latest_period":"2023-01-01","latest_value":258386.0,"max":567065.0,"mean":299256.0,"min":236555.0,"of":194,"rank":16,"trend":"falling"}}