Breaking: Rift Valley Fever Outbreak Expands Across Senegal as Africa CDC Publishes 2025 Update
rift Valley fever (RVF), a viral illness spread by mosquitoes or through contact with infected animals, continues to push across Senegal and other affected regions. The outbreak remains concentrated in livestock areas and transhumance routes, threatening both human health and animal at-risk populations.
By December 24,2025,Africa’s three African Union member states reported a combined total of 20,203 RVF cases (610 confirmed,19,413 suspected) and 47 deaths for the year. The regional breakdown shows Mauritania with 307 cases and 15 deaths; Uganda with 3 cases and 1 death; and Senegal dominating the tally with 19,713 cases and 31 deaths.
In Week 50 of 2025, Senegal logged 1,019 new RVF cases across 11 regions, with no associated deaths. this marks an approximate 47 percent drop in new cases over the previous four weeks. Across 2025, men accounted for about 65 percent of cases. The Saint-Louis region remains the epicenter, representing 67 percent of confirmed cases and 61 percent of deaths. Simultaneously occurring, RVF was also reported in animals, with 434 cases recorded in livestock and wildlife.
| Region / Area | human RVF Cases | Deaths |
|---|---|---|
| Senegal | 19,713 | 31 |
| Mauritania | 307 | 15 |
| Uganda | 3 | 1 |
| Animals (RVF cases) | 434 | N/A |
Context and guidance from health authorities highlight Rift Valley fever as a disease impacting both people and animals, with transmission risk shaped by mosquito activity and animal contact. Public health measures continue to emphasize surveillance, vector control, safe handling of livestock, and livestock vaccination where possible to protect communities and markets.
For broader context, see authoritative resources from the World Health Association and Africa CDC: WHO Rift Valley Fever overview and Africa CDC.
What this means for communities and long-term health security
Rift Valley fever remains a seasonal threat in regions with dense livestock activity. strengthening cross-border surveillance, rapid reporting of suspected cases, and sustained vaccination campaigns for animals are essential to reducing transmission risk and protecting livelihoods.
Long-term resilience will depend on continued public education about mosquito bite prevention, safe animal product handling, and prompt medical evaluation for suspected RVF symptoms.
What questions do you have about RVF prevention in your area? Have you noticed changes in livestock health or market activity related to this outbreak? Share your experiences and questions in the comments below.
Disclaimer: Health information reflects official public health reports. For medical concerns, consult a health professional or local health authority.
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