Share of potential polio cases tested and reported to the WHO in Chad
Chad: Share of potential polio cases tested and reported to the WHO was 89.0% in 2023. ▲ Rising
Share of potential polio cases tested and reported to the WHO in Chad, 2001–2023
Source: World Health Organization (2024) – processed by Our World in Data. Measured in %.
Analysis
In 2023, share of potential polio cases tested and reported to the who in Chad stood at 89.0%.
That represents a change of up 6.0% on the previous year and down 1.1% over ten years.
Over the whole period, share of potential polio cases tested and reported to the who in Chad peaked at 95.0% in 2014 and was at its lowest, 54.0%, in 2001.
That places Chad 59th out of 173 countries with data for 2023, putting it in the middle of the range.
The long-run direction has been consistently rising across the 23 years of available data.
Share of potential polio cases tested and reported to the WHO in Chad, year by year
| Year | % | Change |
|---|---|---|
| 2001 | 54.0% | — |
| 2002 | 71.0% | +31.5% |
| 2003 | 73.0% | +2.8% |
| 2004 | 73.0% | +0.0% |
| 2005 | 86.0% | +17.8% |
| 2006 | 93.0% | +8.1% |
| 2007 | 88.0% | -5.4% |
| 2008 | 84.0% | -4.5% |
| 2009 | 83.0% | -1.2% |
| 2010 | 87.0% | +4.8% |
| 2011 | 82.0% | -5.7% |
| 2012 | 80.0% | -2.4% |
| 2013 | 90.0% | +12.5% |
| 2014 | 95.0% | +5.6% |
| 2015 | 93.0% | -2.1% |
| 2016 | 93.0% | +0.0% |
| 2017 | 91.0% | -2.2% |
| 2018 | 84.0% | -7.7% |
| 2019 | 88.0% | +4.8% |
| 2020 | 58.0% | -34.1% |
| 2021 | 70.0% | +20.7% |
| 2022 | 84.0% | +20.0% |
| 2023 | 89.0% | +6.0% |
Chad compared with similar countries
- Chad's 89.0% is below the median for low income countries, which is 92.0%, 97% of the median. (25 countries reporting)
- Chad's 89.0% is above the median for Sub-Saharan Africa, which is 88.5%, 1.0× the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 78.3% | 54.0% | 93.0% | 9 |
| 2010s | 88.3% | 80.0% | 95.0% | 10 |
| 2020s | 75.2% | 58.0% | 89.0% | 4 |
Countries ranked near Chad
More reference data data for Chad
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.3078 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 13.52 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 14.01 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.1797 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 14.01 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 1.03 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.5525 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 58.55 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 61.14 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 0.9785 (2050)
Frequently asked questions
- What is share of potential polio cases tested and reported to the who in Chad?
- Share of potential polio cases tested and reported to the who in Chad was 89.0% in 2023, according to World Health Organization (2024) – processed by Our World in Data.
- What is the highest share of potential polio cases tested and reported to the who recorded in Chad?
- The highest recorded value was 95.0% in 2014.
- What is the lowest share of potential polio cases tested and reported to the who recorded in Chad?
- The lowest recorded value was 54.0% in 2001.
- How does Chad rank for share of potential polio cases tested and reported to the who?
- Chad ranks 59th out of 173 countries with data for 2023.
- Is share of potential polio cases tested and reported to the who rising or falling in Chad?
- Over the last ten years it is down 1.1%. The long-run trend across the full record is rising.
- Where does this Chad data come from?
- The figures come from World Health Organization (2024) – processed by Our World in Data, published as part of Share of potential polio cases tested and reported to the WHO. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 23 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Share of acute flaccid paralysis (AFP) cases, where stool samples were tested for poliovirus and reported to the WHO.