Number of one-year-olds who are not vaccinated against measles in Trinidad and Tobago
Trinidad and Tobago: Number of one-year-olds who are not vaccinated against measles was 1,646 one-year-olds in 2023. ◆ Volatile
Latest (2023)
1,646 one-year-olds
Change on year
up 22.1%
World rank
147th
of 194 countries
All-time high
28,601 one-year-olds
in 1984
All-time low
178.8 one-year-olds
in 2019
Years of data
40
1984–2023
Number of one-year-olds who are not vaccinated against measles in Trinidad and Tobago, 1984–2023
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.
Analysis
In 2023, number of one-year-olds who are not vaccinated against measles in Trinidad and Tobago stood at 1,646 one-year-olds.
Compared with earlier readings it is up 22.1% on the previous year and down 3.6% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against measles in Trinidad and Tobago peaked at 28,601 one-year-olds in 1984 and was at its lowest, 178.8 one-year-olds, in 2019.
That places Trinidad and Tobago 147th out of 194 countries with data for 2023, putting it in the bottom quarter.
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 measles in Trinidad and Tobago, year by year
| Year | one-year-olds | Change |
|---|---|---|
| 1984 | 28,601 one-year-olds | — |
| 1985 | 21,562 one-year-olds | -24.6% |
| 1986 | 18,302 one-year-olds | -15.1% |
| 1987 | 9,960 one-year-olds | -45.6% |
| 1988 | 8,430 one-year-olds | -15.4% |
| 1989 | 11,802 one-year-olds | +40.0% |
| 1990 | 8,238 one-year-olds | -30.2% |
| 1991 | 1,827 one-year-olds | -77.8% |
| 1992 | 4,222 one-year-olds | +131.1% |
| 1993 | 3,105 one-year-olds | -26.5% |
| 1994 | 3,223 one-year-olds | +3.8% |
| 1995 | 3,556 one-year-olds | +10.3% |
| 1996 | 2,564 one-year-olds | -27.9% |
| 1997 | 2,460 one-year-olds | -4.1% |
| 1998 | 1,984 one-year-olds | -19.4% |
| 1999 | 2,322 one-year-olds | +17.0% |
| 2000 | 1,912 one-year-olds | -17.6% |
| 2001 | 1,714 one-year-olds | -10.4% |
| 2002 | 2,466 one-year-olds | +43.9% |
| 2003 | 2,263 one-year-olds | -8.2% |
| 2004 | 937.85 one-year-olds | -58.6% |
| 2005 | 1,309 one-year-olds | +39.6% |
| 2006 | 2,063 one-year-olds | +57.6% |
| 2007 | 1,703 one-year-olds | -17.4% |
| 2008 | 1,715 one-year-olds | +0.7% |
| 2009 | 1,146 one-year-olds | -33.2% |
| 2010 | 1,529 one-year-olds | +33.5% |
| 2011 | 1,529 one-year-olds | +0.0% |
| 2012 | 2,859 one-year-olds | +86.9% |
| 2013 | 1,707 one-year-olds | -40.3% |
| 2014 | 752.56 one-year-olds | -55.9% |
| 2015 | 2,049 one-year-olds | +172.2% |
| 2016 | 2,578 one-year-olds | +25.8% |
| 2017 | 1,274 one-year-olds | -50.6% |
| 2018 | 1,810 one-year-olds | +42.1% |
| 2019 | 178.8 one-year-olds | -90.1% |
| 2020 | 1,581 one-year-olds | +784.0% |
| 2021 | 1,208 one-year-olds | -23.6% |
| 2022 | 1,348 one-year-olds | +11.6% |
| 2023 | 1,646 one-year-olds | +22.1% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 16,443 one-year-olds | 8,430 one-year-olds | 28,601 one-year-olds | 6 |
| 1990s | 3,350 one-year-olds | 1,827 one-year-olds | 8,238 one-year-olds | 10 |
| 2000s | 1,723 one-year-olds | 937.85 one-year-olds | 2,466 one-year-olds | 10 |
| 2010s | 1,627 one-year-olds | 178.8 one-year-olds | 2,859 one-year-olds | 10 |
| 2020s | 1,446 one-year-olds | 1,208 one-year-olds | 1,646 one-year-olds | 4 |
Countries ranked near Trinidad and Tobago
More health data for Trinidad and Tobago
- Un projection of annual infant deaths, annual growth rate 0 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate -0.1463 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,638 deaths per 1,000 people (2090)
- Number of infants who die before age 1 24 deaths (2100)
- Total tetanus - number of reported cases, gaps filled 0 (2025)
- Total tetanus - number of reported cases, per capita 0 units per person (2025)
- Diphtheria - number of reported cases, gaps filled 0 (2025)
- Diphtheria - number of reported cases, per capita 0 units per person (2025)
- Measles - number of reported cases, gaps filled 0 (2025)
- Measles - number of reported cases, 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 measles in Trinidad and Tobago?
- Number of one-year-olds who are not vaccinated against measles in Trinidad and Tobago was 1,646 one-year-olds in 2023, according to WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest number of one-year-olds who are not vaccinated against measles recorded in Trinidad and Tobago?
- The highest recorded value was 28,601 one-year-olds in 1984.
- What is the lowest number of one-year-olds who are not vaccinated against measles recorded in Trinidad and Tobago?
- The lowest recorded value was 178.8 one-year-olds in 2019.
- How does Trinidad and Tobago rank for number of one-year-olds who are not vaccinated against measles?
- Trinidad and Tobago ranks 147th out of 194 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against measles rising or falling in Trinidad and Tobago?
- Over the last ten years it is down 3.6%. The long-run trend across the full record is volatile.
- Where does this Trinidad and Tobago data come from?
- The figures come from WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Number of one-year-olds who are not vaccinated against measles. Statizoid updates them automatically from the source API.
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About this data
Number of one-year-olds who have not had the first dose of the measles vaccine in a given year.