West Africa
How estimated TB incidence and reporting changed in West Africa
Nigeria’s notified tuberculosis cases reached 79% of estimated incident cases in 2024, up from 26% in 2019. Its published incidence estimate was 219 per 100,000 people in both years. Across the region, incidence and notification measures changed at different speeds.
Sources checked
Estimated incidence
Scale · 0 per 100,000 to 219 per 100,000
Case notification
Scale · 0% to 79%
Switch between estimated incidence and the share of estimated incident cases notified. Each measure uses its own scale.
Nigeria’s notification share rose while its incidence estimate held steady
The published incidence estimate was 219 per 100,000 in both 2019 and 2024. The notified share rose to 43% in 2021, 74% in 2023 and 79% in 2024. A larger share can reflect a change in recorded diagnoses and reporting, rather than a higher incidence rate. Source 1 Source 2
Côte d’Ivoire and Benin ended below 100 per 100,000
Côte d’Ivoire fell from an estimated 126 per 100,000 in 2019 to 99 in 2024. Benin went from 51 to 40. Their 2024 notification shares were close together at 69% and 70%. Source 1 Source 2
Ghana and Senegal had similar incidence estimates
Ghana recorded an estimated 126 incident cases per 100,000 people in 2024 and Senegal 132. Ghana notified 46% of estimated cases, compared with 68% in Senegal. The estimate and notification share show different parts of the record. Source 1 Source 2
The notification share has an estimated denominator
WHO divides notified new and relapse cases by estimated incident cases for the year. The denominator can be revised as data and estimation methods change. The table shows the published central estimates rather than uncertainty intervals or treatment outcomes. Source 3 Source 4