Number of people requiring preventive treatment for river blindness by country
The estimated number of people at risk of river blindness) who require preventive chemotherapy.
What the numbers show
Number of people requiring preventive treatment for river blindness is currently reported for 31 countries. The highest value is 57.75 million People in Democratic Republic of Congo; the lowest is 16,071 People in Venezuela.
The median across all reporting countries is 3.80 million People, and the mean is 8.15 million People.
The gap between the highest and lowest reporting country is a factor of about 3,593.
Over the past decade 26 countries rose and 5 fell. The largest increase was in Mozambique (up 8,329.3%), and the largest decrease in Uganda (down 85.4%).
Number of people requiring preventive treatment for river blindness: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|---|---|---|---|---|
| 1 | Democratic Republic of Congo | 57.75 million People | 2024 | up 32.7% | rising |
| 2 | Nigeria | 40.38 million People | 2024 | down 21.4% | falling |
| 3 | Ethiopia | 30.56 million People | 2024 | up 152.4% | rising |
| 4 | Cote d'Ivoire | 22.62 million People | 2024 | up 868.8% | volatile |
| 5 | Guinea | 11.78 million People | 2024 | up 250.8% | rising |
| 6 | Cameroon | 11.77 million People | 2024 | up 31.7% | rising |
| 7 | South Sudan | 9.77 million People | 2024 | up 40.2% | rising |
| 8 | Mali | 7.31 million People | 2024 | up 39.7% | rising |
| 9 | Sierra Leone | 7.07 million People | 2024 | up 118.0% | rising |
| 10 | Tanzania | 6.88 million People | 2024 | up 94.3% | rising |
| 11 | Angola | 6.77 million People | 2024 | up 159.5% | rising |
| 12 | Benin | 6.55 million People | 2024 | up 85.9% | rising |
| 13 | Chad | 6.17 million People | 2024 | up 139.2% | rising |
| 14 | Ghana | 5.20 million People | 2024 | up 104.3% | rising |
| 15 | Liberia | 3.84 million People | 2024 | up 20.9% | rising |
| 16 | Central African Republic | 3.80 million People | 2024 | up 76.7% | rising |
| 17 | Togo | 3.40 million People | 2024 | up 6.8% | falling |
| 18 | Burundi | 2.27 million People | 2024 | up 0.3% | rising |
| 19 | Malawi | 2.03 million People | 2024 | down 11.2% | falling |
| 20 | Yemen | 1.46 million People | 2024 | up 386.6% | volatile |
| 21 | Mozambique | 1.43 million People | 2024 | up 8,329.3% | volatile |
| 22 | Congo | 841,658 People | 2024 | down 42.3% | falling |
| 23 | Gabon | 783,365 People | 2024 | up 1,003.3% | volatile |
| 24 | Uganda | 651,348 People | 2024 | down 85.4% | falling |
| 25 | Guinea-Bissau | 646,572 People | 2024 | up 236.2% | rising |
| 26 | Senegal | 356,387 People | 2022 | up 97.5% | volatile |
| 27 | Burkina Faso | 340,655 People | 2024 | up 47.4% | rising |
| 28 | Sudan | 196,703 People | 2024 | down 70.3% | falling |
| 29 | Equatorial Guinea | 98,797 People | 2020 | up 15.1% | rising |
| 30 | Brazil | 16,842 People | 2024 | up 20.5% | rising |
| 31 | Venezuela | 16,071 People | 2024 | up 25.6% | rising |
About this data
The estimated number of people at risk of river blindness) who require preventive chemotherapy.