{"entity":{"iso2":"TD","iso3":"TCD","name":"Chad","slug":"chad"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"ipv-vaccine-coverage","source":"WHO & UNICEF (2025); UN, World Population Prospects (2024) \u2013 processed by Our World in Data","source_url":"https://ourworldindata.org/grapher/ipv-vaccine-coverage","title":"Share of one-year-olds who received the inactivated polio vaccine","unit":"%"},"observations":[{"date":"2015-01-01","value":28.0},{"date":"2016-01-01","value":41.0},{"date":"2017-01-01","value":41.0},{"date":"2018-01-01","value":49.0},{"date":"2019-01-01","value":51.0},{"date":"2020-01-01","value":54.0},{"date":"2021-01-01","value":63.0},{"date":"2022-01-01","value":66.0},{"date":"2023-01-01","value":67.0},{"date":"2024-01-01","value":67.0}],"summary":{"latest_period":"2024-01-01","latest_value":67.0,"max":67.0,"mean":52.7,"min":28.0,"of":194,"rank":178,"trend":"rising"}}