Number of one-year-olds who are not fully vaccinated against in Vietnam
Vietnam: Number of one-year-olds who are not fully vaccinated against was 495,339 one-year-olds in 2023. ◆ Volatile
Number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Vietnam, 1983–2023
Source: WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.
Analysis
Vietnam recorded 495,339 one-year-olds for number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in 2023.
Compared with earlier readings it is up 279.2% on the previous year and down 22.1% over ten years.
Over the whole period, number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Vietnam peaked at 1.69 million one-year-olds in 1984 and was at its lowest, 13,840 one-year-olds, in 2003.
That places Vietnam 11th out of 195 countries with data for 2023, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not fully vaccinated against in Vietnam, year by year
| Year | one-year-olds | Change |
|---|---|---|
| 1983 | 1.66 million one-year-olds | — |
| 1984 | 1.69 million one-year-olds | +1.8% |
| 1985 | 1.05 million one-year-olds | -37.7% |
| 1986 | 1.04 million one-year-olds | -1.5% |
| 1987 | 894,661 one-year-olds | -13.8% |
| 1988 | 523,126 one-year-olds | -41.5% |
| 1989 | 206,807 one-year-olds | -60.5% |
| 1990 | 210,795 one-year-olds | +1.9% |
| 1991 | 216,293 one-year-olds | +2.6% |
| 1992 | 219,169 one-year-olds | +1.3% |
| 1993 | 163,527 one-year-olds | -25.4% |
| 1994 | 106,618 one-year-olds | -34.8% |
| 1995 | 120,089 one-year-olds | +12.6% |
| 1996 | 97,934 one-year-olds | -18.4% |
| 1997 | 77,024 one-year-olds | -21.4% |
| 1998 | 87,258 one-year-olds | +13.3% |
| 1999 | 96,443 one-year-olds | +10.5% |
| 2000 | 52,959 one-year-olds | -45.1% |
| 2001 | 53,240 one-year-olds | +0.5% |
| 2002 | 341,491 one-year-olds | +541.4% |
| 2003 | 13,840 one-year-olds | -95.9% |
| 2004 | 56,004 one-year-olds | +304.6% |
| 2005 | 70,544 one-year-olds | +26.0% |
| 2006 | 84,126 one-year-olds | +19.3% |
| 2007 | 112,732 one-year-olds | +34.0% |
| 2008 | 102,628 one-year-olds | -9.0% |
| 2009 | 60,927 one-year-olds | -40.6% |
| 2010 | 105,967 one-year-olds | +73.9% |
| 2011 | 74,552 one-year-olds | -29.6% |
| 2012 | 45,340 one-year-olds | -39.2% |
| 2013 | 635,679 one-year-olds | +1302.0% |
| 2014 | 79,112 one-year-olds | -87.6% |
| 2015 | 49,101 one-year-olds | -37.9% |
| 2016 | 67,541 one-year-olds | +37.6% |
| 2017 | 98,839 one-year-olds | +46.3% |
| 2018 | 396,516 one-year-olds | +301.2% |
| 2019 | 166,319 one-year-olds | -58.1% |
| 2020 | 88,010 one-year-olds | -47.1% |
| 2021 | 250,909 one-year-olds | +185.1% |
| 2022 | 130,615 one-year-olds | -47.9% |
| 2023 | 495,339 one-year-olds | +279.2% |
Vietnam compared with similar countries
- Vietnam's 495,339 one-year-olds is above the median for upper middle income countries, which is 4,976 one-year-olds, 99.5× the median. (58 countries reporting)
- Vietnam's 495,339 one-year-olds is above the median for East Asia & Pacific, which is 4,252 one-year-olds, 116.5× the median. (30 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not fully vaccinated against in Vietnam 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 |
|---|---|---|---|
| 2013 | +1302.0% | 45,340 one-year-olds | 635,679 one-year-olds |
| 2002 | +541.4% | 53,240 one-year-olds | 341,491 one-year-olds |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 1.01 million one-year-olds | 206,807 one-year-olds | 1.69 million one-year-olds | 7 |
| 1990s | 139,515 one-year-olds | 77,024 one-year-olds | 219,169 one-year-olds | 10 |
| 2000s | 94,849 one-year-olds | 13,840 one-year-olds | 341,491 one-year-olds | 10 |
| 2010s | 171,897 one-year-olds | 45,340 one-year-olds | 635,679 one-year-olds | 10 |
| 2020s | 241,218 one-year-olds | 88,010 one-year-olds | 495,339 one-year-olds | 4 |
Countries ranked near Vietnam
More health data for Vietnam
- Un projection of annual infant deaths, annual growth rate -1.66 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.0536 % change on previous year (2090)
- Number of infants who die before age 1 3,132 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 27 (2025)
- Population ages 00-04, female, annual growth rate -2.12 % 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 0.0322 units per person (2025)
- Population ages 00-04, male, annual growth rate -2.33 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, male, per capita 0.0357 units per person (2025)
Frequently asked questions
- What is number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Vietnam?
- Number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Vietnam was 495,339 one-year-olds in 2023, according to WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus recorded in Vietnam?
- The highest recorded value was 1.69 million one-year-olds in 1984.
- What is the lowest number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus recorded in Vietnam?
- The lowest recorded value was 13,840 one-year-olds in 2003.
- How does Vietnam rank for number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus?
- Vietnam ranks 11th out of 195 countries with data for 2023.
- Is number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus rising or falling in Vietnam?
- Over the last ten years it is down 22.1%. The long-run trend across the full record is volatile.
- Where does this Vietnam 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 Number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus. Statizoid updates them automatically from the source API.
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About this data
Number of one-year-olds who have not had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.