This outbreak caused 44 cases and 8 deaths, emphasizing the need for One Health strategies to tackle risk factors.
In late September 2025, a deadly Rift Valley fever outbreak in northern Senegal caused 44 cases and 8 deaths. Sequencing confirmed lineage H persistence with three novel polymerase mutations suggesting adaptation. Ongoing concurrent One Health investigations target vectors, livestock, and human exposure to identify risk factors and strengthen control.
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Diagne et al. (2025) studied this question.
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