Share of one-year-olds vaccinated against hepatitis B in Samoa
Samoa: Share of one-year-olds vaccinated against hepatitis B was 85.0% in 2024. ▲ Rising
Share of one-year-olds vaccinated against hepatitis B in Samoa, 1992–2024
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in %.
Analysis
In 2024, share of one-year-olds vaccinated against hepatitis b in Samoa stood at 85.0%.
The figure is up 2.4% on the previous year and up 4.9% over ten years.
Over the whole period, share of one-year-olds vaccinated against hepatitis b in Samoa peaked at 99.0% in 1997 and was at its lowest, 1.0%, in 1993.
That places Samoa 126th out of 189 countries with data for 2024, putting it in the middle of the range.
The long-run direction has been consistently rising across the 33 years of available data.
Share of one-year-olds vaccinated against hepatitis B in Samoa, year by year
| Year | % | Change |
|---|---|---|
| 1992 | 18.0% | — |
| 1993 | 1.0% | -94.4% |
| 1994 | 94.0% | +9300.0% |
| 1995 | 96.0% | +2.1% |
| 1996 | 98.0% | +2.1% |
| 1997 | 99.0% | +1.0% |
| 1998 | 98.0% | -1.0% |
| 1999 | 97.0% | -1.0% |
| 2000 | 93.0% | -4.1% |
| 2001 | 93.0% | +0.0% |
| 2002 | 92.0% | -1.1% |
| 2003 | 90.0% | -2.2% |
| 2004 | 62.0% | -31.1% |
| 2005 | 51.0% | -17.7% |
| 2006 | 46.0% | -9.8% |
| 2007 | 58.0% | +26.1% |
| 2008 | 26.0% | -55.2% |
| 2009 | 58.0% | +123.1% |
| 2010 | 72.0% | +24.1% |
| 2011 | 75.0% | +4.2% |
| 2012 | 82.0% | +9.3% |
| 2013 | 85.0% | +3.7% |
| 2014 | 81.0% | -4.7% |
| 2015 | 80.0% | -1.2% |
| 2016 | 74.0% | -7.5% |
| 2017 | 67.0% | -9.5% |
| 2018 | 44.0% | -34.3% |
| 2019 | 68.0% | +54.5% |
| 2020 | 89.0% | +30.9% |
| 2021 | 85.0% | -4.5% |
| 2022 | 76.0% | -10.6% |
| 2023 | 83.0% | +9.2% |
| 2024 | 85.0% | +2.4% |
Samoa compared with similar countries
- Samoa's 85.0% is below the median for upper middle income countries, which is 90.5%, 94% of the median. (58 countries reporting)
- Samoa's 85.0% is below the median for East Asia & Pacific, which is 93.0%, 91% of the median. (30 countries reporting)
Biggest year-on-year movements
Years where Share of one-year-olds vaccinated against hepatitis B in Samoa 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 |
|---|---|---|---|
| 1994 | +9300.0% | 1.0% | 94.0% |
| 2009 | +123.1% | 26.0% | 58.0% |
| 1993 | -94.4% | 18.0% | 1.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 75.1% | 1.0% | 99.0% | 8 |
| 2000s | 66.9% | 26.0% | 93.0% | 10 |
| 2010s | 72.8% | 44.0% | 85.0% | 10 |
| 2020s | 83.6% | 76.0% | 89.0% | 5 |
Countries ranked near Samoa
More reference data data for Samoa
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.023 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.0165 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.0396 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.0396 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.077 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.0626 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 0.0918 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 0.2319 (2050)
- Emission Totals - Emissions (N2O) - Burning - Crop residues 0 (2050)
- Emission Totals - Emissions (N2O) - Agricultural Soils 0.1693 (2050)
Frequently asked questions
- What is share of one-year-olds vaccinated against hepatitis b in Samoa?
- Share of one-year-olds vaccinated against hepatitis b in Samoa was 85.0% in 2024, according to WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest share of one-year-olds vaccinated against hepatitis b recorded in Samoa?
- The highest recorded value was 99.0% in 1997.
- What is the lowest share of one-year-olds vaccinated against hepatitis b recorded in Samoa?
- The lowest recorded value was 1.0% in 1993.
- How does Samoa rank for share of one-year-olds vaccinated against hepatitis b?
- Samoa ranks 126th out of 189 countries with data for 2024.
- Is share of one-year-olds vaccinated against hepatitis b rising or falling in Samoa?
- Over the last ten years it is up 4.9%. The long-run trend across the full record is rising.
- Where does this Samoa 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 Share of one-year-olds vaccinated against hepatitis B. 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 hepatitis B vaccine in a given year.