Number of one-year-olds who are not vaccinated against hepatitis B in Chad
Chad: Number of one-year-olds who are not vaccinated against hepatitis B was 242,358 one-year-olds in 2023. ▼ Falling
Number of one-year-olds who are not vaccinated against hepatitis B in Chad, 2008–2023
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.
Analysis
The most recent figure for number of one-year-olds who are not vaccinated against hepatitis b in Chad is 242,358 one-year-olds, measured in 2023.
Compared with earlier readings it is up 0.6% on the previous year and down 30.2% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against hepatitis b in Chad peaked at 405,560 one-year-olds in 2008 and was at its lowest, 240,827 one-year-olds, in 2022.
Chad ranks 21st of 189 countries on this measure, in the top quarter.
The long-run direction has been consistently falling across the 16 years of available data.
Number of one-year-olds who are not vaccinated against hepatitis B in Chad, year by year
| Year | one-year-olds | Change |
|---|---|---|
| 2008 | 405,560 one-year-olds | — |
| 2009 | 382,742 one-year-olds | -5.6% |
| 2010 | 316,458 one-year-olds | -17.3% |
| 2011 | 358,997 one-year-olds | +13.4% |
| 2012 | 331,312 one-year-olds | -7.7% |
| 2013 | 347,098 one-year-olds | +4.8% |
| 2014 | 374,296 one-year-olds | +7.8% |
| 2015 | 347,980 one-year-olds | -7.0% |
| 2016 | 363,039 one-year-olds | +4.3% |
| 2017 | 369,824 one-year-olds | +1.9% |
| 2018 | 338,404 one-year-olds | -8.5% |
| 2019 | 307,089 one-year-olds | -9.3% |
| 2020 | 302,367 one-year-olds | -1.5% |
| 2021 | 262,544 one-year-olds | -13.2% |
| 2022 | 240,827 one-year-olds | -8.3% |
| 2023 | 242,358 one-year-olds | +0.6% |
Chad compared with similar countries
- Chad's 242,358 one-year-olds is above the median for low income countries, which is 144,384 one-year-olds, 1.7× the median. (25 countries reporting)
- Chad's 242,358 one-year-olds is above the median for Sub-Saharan Africa, which is 52,290 one-year-olds, 4.6× the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 394,151 one-year-olds | 382,742 one-year-olds | 405,560 one-year-olds | 2 |
| 2010s | 345,450 one-year-olds | 307,089 one-year-olds | 374,296 one-year-olds | 10 |
| 2020s | 262,024 one-year-olds | 240,827 one-year-olds | 302,367 one-year-olds | 4 |
Countries ranked near Chad
- 18 United States 260,243 one-year-olds compare
- 19 Myanmar 255,559 one-year-olds compare
- 20 South Africa 251,724 one-year-olds compare
- 22 Philippines 231,392 one-year-olds compare
- 23 Cameroon 222,746 one-year-olds compare
- 24 Somalia 217,474 one-year-olds compare
More health data for Chad
- Un projection of annual infant deaths, annual growth rate -0.9964 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.6578 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,071 deaths per 1,000 people (2090)
- Number of infants who die before age 1 41,435 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 245 (2025)
- Population ages 00-04, female, annual growth rate 3.76 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0.0001 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0898 units per person (2025)
- Population ages 00-04, male, annual growth rate 3.77 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0.0001 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against hepatitis b in Chad?
- Number of one-year-olds who are not vaccinated against hepatitis b in Chad was 242,358 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 hepatitis b recorded in Chad?
- The highest recorded value was 405,560 one-year-olds in 2008.
- What is the lowest number of one-year-olds who are not vaccinated against hepatitis b recorded in Chad?
- The lowest recorded value was 240,827 one-year-olds in 2022.
- How does Chad rank for number of one-year-olds who are not vaccinated against hepatitis b?
- Chad ranks 21st out of 189 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against hepatitis b rising or falling in Chad?
- Over the last ten years it is down 30.2%. The long-run trend across the full record is falling.
- Where does this Chad 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 hepatitis B. 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 hepatitis B vaccine in a given year.