Number of one-year-olds who are not vaccinated against diphtheria in Seychelles
Seychelles: Number of one-year-olds who are not vaccinated against diphtheria was 0.0005 one-year-olds per person in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in Seychelles, 1981–2023
Source: Statizoid (derived). Measured in one-year-olds per person.
Analysis
Seychelles recorded 0.0005 one-year-olds per person for number of one-year-olds who are not vaccinated against diphtheria in 2023.
That represents a change of up 0.8% on the previous year and up 26.1% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Seychelles peaked at 0.0214 one-year-olds per person in 1981 and was at its lowest, 0.0002 one-year-olds per person, in 2010.
Seychelles ranks 143rd of 192 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not vaccinated against diphtheria in Seychelles, year by year
| Year | one-year-olds per person | Change |
|---|---|---|
| 1981 | 0.0214 one-year-olds per person | — |
| 1982 | 0.0112 one-year-olds per person | -47.9% |
| 1983 | 0.0007 one-year-olds per person | -93.3% |
| 1984 | 0.0012 one-year-olds per person | +66.5% |
| 1985 | 0.0035 one-year-olds per person | +180.0% |
| 1986 | 0.0015 one-year-olds per person | -56.9% |
| 1987 | 0.0027 one-year-olds per person | +76.6% |
| 1988 | 0.0014 one-year-olds per person | -45.9% |
| 1989 | 0.0007 one-year-olds per person | -50.3% |
| 1990 | 0.0002 one-year-olds per person | -67.0% |
| 1991 | 0.0005 one-year-olds per person | +95.7% |
| 1992 | 0.0009 one-year-olds per person | +97.6% |
| 1993 | 0.0009 one-year-olds per person | -3.2% |
| 1994 | 0.0009 one-year-olds per person | -1.3% |
| 1995 | 0.0007 one-year-olds per person | -24.1% |
| 1996 | 0.0002 one-year-olds per person | -68.1% |
| 1997 | 0.0004 one-year-olds per person | +85.9% |
| 1998 | 0.0002 one-year-olds per person | -52.7% |
| 1999 | 0.0002 one-year-olds per person | -2.5% |
| 2000 | 0.0004 one-year-olds per person | +98.2% |
| 2001 | 0.0007 one-year-olds per person | +97.9% |
| 2002 | 0.0002 one-year-olds per person | -75.9% |
| 2003 | 0.0002 one-year-olds per person | +1.0% |
| 2004 | 0.0002 one-year-olds per person | +0.8% |
| 2005 | 0.0002 one-year-olds per person | +0.1% |
| 2006 | 0.0002 one-year-olds per person | -1.8% |
| 2007 | 0.0002 one-year-olds per person | -0.4% |
| 2008 | 0.0002 one-year-olds per person | -2.5% |
| 2009 | 0.0002 one-year-olds per person | -0.5% |
| 2010 | 0.0002 one-year-olds per person | -1.1% |
| 2011 | 0.0002 one-year-olds per person | +6.3% |
| 2012 | 0.0004 one-year-olds per person | +104.7% |
| 2013 | 0.0004 one-year-olds per person | +0.3% |
| 2014 | 0.0002 one-year-olds per person | -50.2% |
| 2015 | 0.0005 one-year-olds per person | +196.3% |
| 2016 | 0.0007 one-year-olds per person | +32.8% |
| 2017 | 0.0005 one-year-olds per person | -24.8% |
| 2018 | 0.0002 one-year-olds per person | -66.5% |
| 2019 | 0.0002 one-year-olds per person | -0.2% |
| 2020 | 0.0005 one-year-olds per person | +198.1% |
| 2021 | 0.001 one-year-olds per person | +99.1% |
| 2022 | 0.0004 one-year-olds per person | -57.2% |
| 2023 | 0.0005 one-year-olds per person | +0.8% |
Seychelles compared with similar countries
- Seychelles's 0.0005 one-year-olds per person is above the median for high income countries, which is 0.0004 one-year-olds per person, 1.0× the median. (63 countries reporting)
- Seychelles's 0.0005 one-year-olds per person is below the median for Sub-Saharan Africa, which is 0.0048 one-year-olds per person, 9% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.0049 one-year-olds per person | 0.0007 one-year-olds per person | 0.0214 one-year-olds per person | 9 |
| 1990s | 0.0005 one-year-olds per person | 0.0002 one-year-olds per person | 0.0009 one-year-olds per person | 10 |
| 2000s | 0.0002 one-year-olds per person | 0.0002 one-year-olds per person | 0.0007 one-year-olds per person | 10 |
| 2010s | 0.0003 one-year-olds per person | 0.0002 one-year-olds per person | 0.0007 one-year-olds per person | 10 |
| 2020s | 0.0006 one-year-olds per person | 0.0004 one-year-olds per person | 0.001 one-year-olds per person | 4 |
Countries ranked near Seychelles
- 140 Switzerland 0.0005 one-year-olds per person compare
- 141 Trinidad and Tobago 0.0005 one-year-olds per person compare
- 142 Saint Kitts and Nevis 0.0005 one-year-olds per person compare
- 144 Poland 0.0004 one-year-olds per person compare
- 145 Saudi Arabia 0.0004 one-year-olds per person compare
- 146 Turkmenistan 0.0004 one-year-olds per person compare
More health data for Seychelles
- Un projection of annual infant deaths, annual growth rate 0 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate -1.17 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,333 deaths per 1,000 people (2090)
- Number of infants who die before age 1 3 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate -0.0987 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.033 units per person (2025)
- Population ages 00-04, male, annual growth rate -0.2838 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against diphtheria in Seychelles?
- Number of one-year-olds who are not vaccinated against diphtheria in Seychelles was 0.0005 one-year-olds per person in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in Seychelles?
- The highest recorded value was 0.0214 one-year-olds per person in 1981.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Seychelles?
- The lowest recorded value was 0.0002 one-year-olds per person in 2010.
- How does Seychelles rank for number of one-year-olds who are not vaccinated against diphtheria?
- Seychelles ranks 143rd out of 192 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Seychelles?
- Over the last ten years it is up 26.1%. The long-run trend across the full record is volatile.
- Where does this Seychelles data come from?
- The figures come from Statizoid (derived), published as part of Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per capita. Statizoid updates them automatically from the source API.
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CSV · JSON — 43 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus ÷ Population, total
Computed from
- Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data
- Population, total World Population Prospects, United Nations (UN)
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.