World Health Organization · Health
Sierra Leone: Reported number of individuals treated for onchocerciasis
5.81Mcount · 2025+76.1% since 2015
Reported number of individuals treated for onchocerciasis. WHO Global Health Observatory indicator NTD_ONCTREAT. Annual figures for Sierra Leone from 2008 to 2025.
Every year
| Year | Value (count) | Note |
|---|---|---|
| 2025 | 5,805,155 | |
| 2024 | 414,286 | |
| 2023 | 5,678,436 | |
| 2022 | 5,795,324 | |
| 2021 | 5,694,454 | |
| 2020 | 5,334,148 | |
| 2019 | 4,732,950 | |
| 2018 | 4,435,947 | |
| 2017 | 4,662,686 | |
| 2016 | 4,202,381 | |
| 2015 | 3,295,899 | |
| 2013 | 3,419,081 | |
| 2012 | 2,642,036 | |
| 2011 | 2,446,658 | |
| 2010 | 2,248,106 | |
| 2009 | 2,077,545 | |
| 2008 | 1,770,757 |
Source
Published by World Health Organization. Licence: CC BY-NC-SA 3.0 IGO. Retrieved 2026-11-08.
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Cite or download
World Health Organization (2026). Reported number of individuals treated for onchocerciasis. Interva. https://interva.co/dataset/who-ntd-onctreat (accessed 2026-11-14). catalog snapshot 2026-11-08.
Reported number of individuals treated for onchocerciasis in other countries
- Angola
- Benin
- Brazil
- Burkina Faso
- Burundi
- Cameroon
- Central African Republic
- Chad
- Colombia
- Congo
- Congo, The Democratic Republic of the
- Côte d'Ivoire
- Ecuador
- Equatorial Guinea
- Ethiopia
- Gabon
- Ghana
- Guatemala
- Guinea
- Guinea-Bissau
- Liberia
- Malawi
- Mali
- Mexico
- Mozambique
- Nigeria
- Senegal
- South Sudan
- Sudan
- Tanzania, United Republic of
- Togo
- Uganda
- Venezuela, Bolivarian Republic of
- Yemen
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