Share of one-year-olds vaccinated against diphtheria, tetanus in Seychelles
Seychelles: Share of one-year-olds vaccinated against diphtheria, tetanus was 98.0% in 2025. ▲ Rising
Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Seychelles, 1981–2025
Source: WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in %.
Analysis
In 2025, share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Seychelles stood at 98.0%.
That represents a change of up 5.4% on the previous year and up 1.0% over ten years.
Over the whole period, share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Seychelles peaked at 99.0% in 1990 and was at its lowest, 13.0%, in 1981.
Seychelles ranks 20th of 195 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 45 years of available data.
Share of one-year-olds vaccinated against diphtheria, tetanus in Seychelles, year by year
| Year | % | Change |
|---|---|---|
| 1981 | 13.0% | — |
| 1982 | 55.0% | +323.1% |
| 1983 | 97.0% | +76.4% |
| 1984 | 95.0% | -2.1% |
| 1985 | 86.0% | -9.5% |
| 1986 | 94.0% | +9.3% |
| 1987 | 89.0% | -5.3% |
| 1988 | 94.0% | +5.6% |
| 1989 | 97.0% | +3.2% |
| 1990 | 99.0% | +2.1% |
| 1991 | 98.0% | -1.0% |
| 1992 | 96.0% | -2.0% |
| 1993 | 96.0% | +0.0% |
| 1994 | 96.0% | +0.0% |
| 1995 | 97.0% | +1.0% |
| 1996 | 99.0% | +2.1% |
| 1997 | 98.0% | -1.0% |
| 1998 | 99.0% | +1.0% |
| 1999 | 99.0% | +0.0% |
| 2000 | 98.0% | -1.0% |
| 2001 | 96.0% | -2.0% |
| 2002 | 99.0% | +3.1% |
| 2003 | 99.0% | +0.0% |
| 2004 | 99.0% | +0.0% |
| 2005 | 99.0% | +0.0% |
| 2006 | 99.0% | +0.0% |
| 2007 | 99.0% | +0.0% |
| 2008 | 99.0% | +0.0% |
| 2009 | 99.0% | +0.0% |
| 2010 | 99.0% | +0.0% |
| 2011 | 99.0% | +0.0% |
| 2012 | 98.0% | -1.0% |
| 2013 | 98.0% | +0.0% |
| 2014 | 99.0% | +1.0% |
| 2015 | 97.0% | -2.0% |
| 2016 | 96.0% | -1.0% |
| 2017 | 97.0% | +1.0% |
| 2018 | 99.0% | +2.1% |
| 2019 | 99.0% | +0.0% |
| 2020 | 97.0% | -2.0% |
| 2021 | 94.0% | -3.1% |
| 2022 | 97.0% | +3.2% |
| 2023 | 97.0% | +0.0% |
| 2024 | 93.0% | -4.1% |
| 2025 | 98.0% | +5.4% |
Seychelles compared with similar countries
- Seychelles's 98.0% is above the median for high income countries, which is 95.0%, 1.0× the median. (63 countries reporting)
- Seychelles's 98.0% is above the median for Sub-Saharan Africa, which is 84.0%, 1.2× the median. (48 countries reporting)
Biggest year-on-year movements
Years where Share of one-year-olds vaccinated against diphtheria, tetanus in Seychelles 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 |
|---|---|---|---|
| 1982 | +323.1% | 13.0% | 55.0% |
| 1983 | +76.4% | 55.0% | 97.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 80.0% | 13.0% | 97.0% | 9 |
| 1990s | 97.7% | 96.0% | 99.0% | 10 |
| 2000s | 98.6% | 96.0% | 99.0% | 10 |
| 2010s | 98.1% | 96.0% | 99.0% | 10 |
| 2020s | 96.0% | 93.0% | 98.0% | 6 |
Countries ranked near Seychelles
- 20 Andorra 98.0% compare
- 20 Bahrain 98.0% compare
- 20 Belarus 98.0% compare
- 20 Belgium 98.0% compare
- 20 Cyprus 98.0% compare
- 20 Egypt 98.0% compare
- 20 Iran 98.0% compare
- 20 Israel 98.0% compare
- 20 Saudi Arabia 98.0% compare
- 20 Turkmenistan 98.0% compare
- 20 United Arab Emirates 98.0% compare
- 20 Uzbekistan 98.0% compare
More reference data data for Seychelles
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0024 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.0046 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.0075 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.0075 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.0082 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.0082 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 0.0247 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 0.043 (2050)
- Emission Totals - Emissions (N2O) - Agricultural Soils 0.0348 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - Manure applied 2.17 (2050)
Frequently asked questions
- What is share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Seychelles?
- Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Seychelles was 98.0% in 2025, according to WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest share of one-year-olds vaccinated against diphtheria, tetanus and pertussis recorded in Seychelles?
- The highest recorded value was 99.0% in 1990.
- What is the lowest share of one-year-olds vaccinated against diphtheria, tetanus and pertussis recorded in Seychelles?
- The lowest recorded value was 13.0% in 1981.
- How does Seychelles rank for share of one-year-olds vaccinated against diphtheria, tetanus and pertussis?
- Seychelles ranks 20th out of 195 countries with data for 2025.
- Is share of one-year-olds vaccinated against diphtheria, tetanus and pertussis rising or falling in Seychelles?
- Over the last ten years it is up 1.0%. The long-run trend across the full record is rising.
- Where does this Seychelles data come from?
- The figures come from WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis. Statizoid updates them automatically from the source API.
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About this data
Share of one-year-olds who have had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.