Number of reported guinea worm dracunculiasis cases in Chad
Chad: Number of reported guinea worm dracunculiasis cases was 4 in 2025. ◆ Volatile
Latest (2025)
4
Change on year
down 55.6%
World rank
1st
of 195 countries
All-time high
1,472
in 1984
All-time low
0
in 1980
Years of data
46
1980–2025
Number of reported guinea worm dracunculiasis cases in Chad, 1980–2025
Source: Our World in Data.
Analysis
Chad recorded 4 for number of reported guinea worm dracunculiasis cases in 2025.
That represents a change of down 55.6% on the previous year and down 55.6% over ten years.
Over the whole period, number of reported guinea worm dracunculiasis cases in Chad peaked at 1,472 in 1984 and was at its lowest, 0, in 1980.
Chad ranks 1st of 195 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Number of reported guinea worm dracunculiasis cases in Chad, year by year
| Year | Value | Change |
|---|---|---|
| 1980 | 0 | — |
| 1981 | 0 | — |
| 1982 | 0 | — |
| 1983 | 0 | — |
| 1984 | 1,472 | — |
| 1985 | 31 | -97.9% |
| 1986 | 314 | +912.9% |
| 1987 | 0 | -100.0% |
| 1988 | 0 | — |
| 1989 | 0 | — |
| 1990 | 0 | — |
| 1991 | 0 | — |
| 1992 | 156 | — |
| 1993 | 1,231 | +689.1% |
| 1994 | 640 | -48.0% |
| 1995 | 149 | -76.7% |
| 1996 | 127 | -14.8% |
| 1997 | 25 | -80.3% |
| 1998 | 3 | -88.0% |
| 1999 | 1 | -66.7% |
| 2000 | 3 | +200.0% |
| 2001 | 0 | -100.0% |
| 2002 | 0 | — |
| 2003 | 0 | — |
| 2004 | 0 | — |
| 2005 | 0 | — |
| 2006 | 0 | — |
| 2007 | 0 | — |
| 2008 | 0 | — |
| 2009 | 0 | — |
| 2010 | 10 | — |
| 2011 | 10 | +0.0% |
| 2012 | 10 | +0.0% |
| 2013 | 14 | +40.0% |
| 2014 | 13 | -7.1% |
| 2015 | 9 | -30.8% |
| 2016 | 16 | +77.8% |
| 2017 | 15 | -6.2% |
| 2018 | 17 | +13.3% |
| 2019 | 48 | +182.4% |
| 2020 | 12 | -75.0% |
| 2021 | 8 | -33.3% |
| 2022 | 6 | -25.0% |
| 2023 | 9 | +50.0% |
| 2024 | 9 | +0.0% |
| 2025 | 4 | -55.6% |
Biggest year-on-year movements
Years where Number of reported guinea worm dracunculiasis cases in Chad changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1986 | +912.9% | 31 | 314 |
| 1993 | +689.1% | 156 | 1,231 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 181.7 | 0 | 1,472 | 10 |
| 1990s | 233.2 | 0 | 1,231 | 10 |
| 2000s | 0.3 | 0 | 3 | 10 |
| 2010s | 16.2 | 9 | 48 | 10 |
| 2020s | 8 | 4 | 12 | 6 |
Countries ranked near Chad
- 1 Ethiopia 4 compare
- 3 South Sudan 2 compare
- 4 Afghanistan 0
- 4 Albania 0
- 4 Algeria 0
- 4 Andorra 0
- 4 Angola 0 compare
- 4 Antigua and Barbuda 0
- 4 Argentina 0
- 4 Armenia 0
- 4 Australia 0
- 4 Austria 0
- 4 Azerbaijan 0
- 4 Bahamas 0
- 4 Bahrain 0
- 4 Bangladesh 0
- 4 Barbados 0
- 4 Belarus 0
- 4 Belgium 0
- 4 Belize 0
- 4 Benin 0 compare
- 4 Bhutan 0
- 4 Bolivia 0
- 4 Bosnia and Herzegovina 0
- 4 Botswana 0
- 4 Brazil 0
- 4 Brunei 0
- 4 Bulgaria 0
- 4 Burkina Faso 0 compare
- 4 Burundi 0
- 4 Cambodia 0
- 4 Cameroon 0 compare
- 4 Canada 0
- 4 Cape Verde 0
- 4 Central African Republic 0 compare
- 4 Chile 0
- 4 China 0
- 4 Colombia 0
- 4 Comoros 0
- 4 Congo 0
- 4 Cook Islands 0
- 4 Costa Rica 0
- 4 Cote d'Ivoire 0 compare
- 4 Croatia 0
- 4 Cuba 0
- 4 Cyprus 0
- 4 Czechia 0
- 4 Democratic Republic of Congo 0
- 4 Denmark 0
- 4 Djibouti 0
- 4 Dominica 0
- 4 Dominican Republic 0
- 4 East Timor 0
- 4 Ecuador 0
- 4 Egypt 0
- 4 El Salvador 0
- 4 Equatorial Guinea 0
- 4 Eritrea 0
- 4 Estonia 0
- 4 Eswatini 0
- 4 Fiji 0
- 4 Finland 0
- 4 France 0
- 4 Gabon 0
- 4 Gambia 0
- 4 Georgia 0
- 4 Germany 0
- 4 Ghana 0 compare
- 4 Greece 0
- 4 Greenland 0
- 4 Grenada 0
- 4 Guatemala 0
- 4 Guinea 0
- 4 Guinea-Bissau 0
- 4 Guyana 0
- 4 Haiti 0
- 4 Honduras 0
- 4 Hungary 0
- 4 Iceland 0
- 4 India 0 compare
- 4 Indonesia 0
- 4 Iran 0
- 4 Iraq 0
- 4 Ireland 0
- 4 Israel 0
- 4 Italy 0
- 4 Jamaica 0
- 4 Japan 0
- 4 Jordan 0
- 4 Kazakhstan 0
- 4 Kenya 0 compare
- 4 Kiribati 0
- 4 Kuwait 0
- 4 Kyrgyzstan 0
- 4 Laos 0
- 4 Latvia 0
- 4 Lebanon 0
- 4 Lesotho 0
- 4 Liberia 0
- 4 Libya 0
- 4 Lithuania 0
- 4 Luxembourg 0
- 4 Madagascar 0
- 4 Malawi 0
- 4 Malaysia 0
- 4 Maldives 0
- 4 Mali 0 compare
- 4 Malta 0
- 4 Marshall Islands 0
- 4 Mauritania 0 compare
- 4 Mauritius 0
- 4 Mexico 0
- 4 Micronesia (country) 0
- 4 Moldova 0
- 4 Monaco 0
- 4 Mongolia 0
- 4 Montenegro 0
- 4 Morocco 0
- 4 Mozambique 0
- 4 Myanmar 0
- 4 Namibia 0
- 4 Nauru 0
- 4 Nepal 0
- 4 Netherlands 0
- 4 New Zealand 0
- 4 Nicaragua 0
- 4 Niger 0 compare
- 4 Nigeria 0 compare
- 4 Niue 0
- 4 North Korea 0
- 4 North Macedonia 0
- 4 Norway 0
- 4 Oman 0
- 4 Pakistan 0 compare
- 4 Palau 0
- 4 Panama 0
- 4 Papua New Guinea 0
- 4 Paraguay 0
- 4 Peru 0
- 4 Philippines 0
- 4 Poland 0
- 4 Portugal 0
- 4 Qatar 0
- 4 Romania 0
- 4 Russia 0
- 4 Rwanda 0
- 4 Saint Kitts and Nevis 0
- 4 Saint Lucia 0
- 4 Saint Vincent and the Grenadines 0
- 4 Samoa 0
- 4 San Marino 0
- 4 Sao Tome and Principe 0
- 4 Saudi Arabia 0
- 4 Senegal 0 compare
- 4 Serbia 0
- 4 Seychelles 0
- 4 Sierra Leone 0
- 4 Singapore 0
- 4 Slovakia 0
- 4 Slovenia 0
- 4 Solomon Islands 0
- 4 Somalia 0
- 4 South Africa 0
- 4 South Korea 0
- 4 Spain 0
- 4 Sri Lanka 0
- 4 Sudan 0 compare
- 4 Suriname 0
- 4 Sweden 0
- 4 Switzerland 0
- 4 Syria 0
- 4 Tajikistan 0
- 4 Tanzania 0
- 4 Thailand 0
- 4 Togo 0 compare
- 4 Tonga 0
- 4 Trinidad and Tobago 0
- 4 Tunisia 0
- 4 Turkey 0
- 4 Turkmenistan 0
- 4 Tuvalu 0
- 4 Uganda 0 compare
- 4 Ukraine 0
- 4 United Arab Emirates 0
- 4 United Kingdom 0
- 4 United States 0
- 4 Uruguay 0
- 4 Uzbekistan 0
- 4 Vanuatu 0
- 4 Venezuela 0
- 4 Vietnam 0
- 4 Yemen 0 compare
- 4 Zambia 0
- 4 Zimbabwe 0
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 number of reported guinea worm dracunculiasis cases in Chad?
- Number of reported guinea worm dracunculiasis cases in Chad was 4 in 2025, according to Our World in Data.
- What is the highest number of reported guinea worm dracunculiasis cases recorded in Chad?
- The highest recorded value was 1,472 in 1984.
- What is the lowest number of reported guinea worm dracunculiasis cases recorded in Chad?
- The lowest recorded value was 0 in 1980.
- How does Chad rank for number of reported guinea worm dracunculiasis cases?
- Chad ranks 1st out of 195 countries with data for 2025.
- Is number of reported guinea worm dracunculiasis cases rising or falling in Chad?
- Over the last ten years it is down 55.6%. The long-run trend across the full record is volatile.
- Where does this Chad data come from?
- The figures come from Our World in Data, published as part of Number of reported guinea worm dracunculiasis cases. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 46 observations, free to reuse under CC BY 4.0 (Our World in Data).