New HIV infections averted by prevention of mother-to-child transmission in Sierra Leone
Sierra Leone: New HIV infections averted by prevention of mother-to-child transmission was 1,161 infections in 2024. ◆ Volatile
New HIV infections averted by prevention of mother-to-child transmission in Sierra Leone, 1990–2024
Source: Joint United Nations Programme on HIV/AIDS (2026) – with minor processing by Our World in Data. Measured in infections.
Analysis
The most recent figure for new hiv infections averted by prevention of mother-to-child transmission in Sierra Leone is 1,161 infections, measured in 2024.
That represents a change of down 4.6% on the previous year and up 78.0% over ten years.
Over the whole period, new hiv infections averted by prevention of mother-to-child transmission in Sierra Leone peaked at 1,217 infections in 2023 and was at its lowest, 0 infections, in 1990.
Sierra Leone ranks 22nd of 85 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
New HIV infections averted by prevention of mother-to-child transmission in Sierra Leone, year by year
| Year | infections | Change |
|---|---|---|
| 1990 | 0 infections | — |
| 1991 | 0 infections | — |
| 1992 | 0 infections | — |
| 1993 | 0 infections | — |
| 1994 | 0 infections | — |
| 1995 | 0 infections | — |
| 1996 | 0 infections | — |
| 1997 | 0 infections | — |
| 1998 | 0 infections | — |
| 1999 | 0 infections | — |
| 2000 | 0 infections | — |
| 2001 | 0 infections | — |
| 2002 | 0 infections | — |
| 2003 | 0 infections | — |
| 2004 | 0.9986 infections | — |
| 2005 | 8.17 infections | +718.4% |
| 2006 | 50.93 infections | +523.2% |
| 2007 | 68.09 infections | +33.7% |
| 2008 | 461.29 infections | +577.4% |
| 2009 | 388.02 infections | -15.9% |
| 2010 | 535.13 infections | +37.9% |
| 2011 | 691.24 infections | +29.2% |
| 2012 | 873.6 infections | +26.4% |
| 2013 | 779.35 infections | -10.8% |
| 2014 | 651.98 infections | -16.3% |
| 2015 | 777.31 infections | +19.2% |
| 2016 | 800.79 infections | +3.0% |
| 2017 | 918.43 infections | +14.7% |
| 2018 | 1,050 infections | +14.3% |
| 2019 | 999.35 infections | -4.8% |
| 2020 | 968.94 infections | -3.0% |
| 2021 | 1,189 infections | +22.8% |
| 2022 | 1,024 infections | -13.9% |
| 2023 | 1,217 infections | +18.8% |
| 2024 | 1,161 infections | -4.6% |
Sierra Leone compared with similar countries
- Sierra Leone's 1,161 infections is above the median for low income countries, which is 914.74 infections, 1.3× the median. (21 countries reporting)
- Sierra Leone's 1,161 infections is below the median for Sub-Saharan Africa, which is 1,267 infections, 92% of the median. (40 countries reporting)
Biggest year-on-year movements
Years where New HIV infections averted by prevention of mother-to-child transmission in Sierra Leone 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 |
|---|---|---|---|
| 2005 | +718.4% | 0.9986 infections | 8.17 infections |
| 2008 | +577.4% | 68.09 infections | 461.29 infections |
| 2006 | +523.2% | 8.17 infections | 50.93 infections |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 0 infections | 0 infections | 0 infections | 10 |
| 2000s | 97.75 infections | 0 infections | 461.29 infections | 10 |
| 2010s | 807.68 infections | 535.13 infections | 1,050 infections | 10 |
| 2020s | 1,112 infections | 968.94 infections | 1,217 infections | 5 |
Countries ranked near Sierra Leone
- 19 Chad 1,397 infections compare
- 20 Lesotho 1,366 infections compare
- 21 South Sudan 1,169 infections compare
- 23 Guinea 1,037 infections compare
- 24 Central African Republic 916.75 infections compare
- 25 Burkina Faso 914.74 infections compare
More health data for Sierra Leone
- Un projection of annual infant deaths, annual growth rate -2.34 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.773 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,199 deaths per 1,000 people (2090)
- Number of infants who die before age 1 4,209 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 38 (2025)
- Population ages 00-04, female, annual growth rate 0.6447 % 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 0.0663 units per person (2025)
- Population ages 00-04, male, annual growth rate 0.6611 % 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 new hiv infections averted by prevention of mother-to-child transmission in Sierra Leone?
- New hiv infections averted by prevention of mother-to-child transmission in Sierra Leone was 1,161 infections in 2024, according to Joint United Nations Programme on HIV/AIDS (2026) – with minor processing by Our World in Data.
- What is the highest new hiv infections averted by prevention of mother-to-child transmission recorded in Sierra Leone?
- The highest recorded value was 1,217 infections in 2023.
- What is the lowest new hiv infections averted by prevention of mother-to-child transmission recorded in Sierra Leone?
- The lowest recorded value was 0 infections in 1990.
- How does Sierra Leone rank for new hiv infections averted by prevention of mother-to-child transmission?
- Sierra Leone ranks 22nd out of 85 countries with data for 2024.
- Is new hiv infections averted by prevention of mother-to-child transmission rising or falling in Sierra Leone?
- Over the last ten years it is up 78.0%. The long-run trend across the full record is volatile.
- Where does this Sierra Leone data come from?
- The figures come from Joint United Nations Programme on HIV/AIDS (2026) – with minor processing by Our World in Data, published as part of New HIV infections averted by prevention of mother-to-child transmission. Statizoid updates them automatically from the source API.
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About this data
New HIV infections among children (aged 0-14 years) prevented through the implementation of Prevention of Mother-to-Child Transmission (PMTCT) programs. This is the central estimate.