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By Doris Obinna
Health authorities and research institutions are intensifying efforts to combat Rift Valley fever (RVF) following a surge in cases in West Africa, as international collaboration accelerates the development and evaluation of a promising investigational vaccine.
More than 610 cases of Rift Valley fever have been reported in Senegal and Mauritania, with at least 47 deaths, underscoring the serious public health, and social and economic consequences of the mosquito-borne disease. The outbreak has prompted swift action from global and regional partners to strengthen preparedness and response measures.
Central to these efforts is a collaboration involving researchers from the University of Oxford, the World Health Organization (WHO), the Institute Pasteur de Dakar and other partners, aimed at enabling rapid clinical evaluation of an investigational RVF vaccine during outbreaks. The initiative includes the establishment of a vaccine stockpile located close to affected regions, allowing for quicker deployment when cases emerge.
Oxford researchers highlighted that the urgency of the current outbreak helped drive a licensing arrangement for the vaccine with the Serum Institute of India, one of the world’s largest vaccine manufacturers. They described the move as a clear demonstration of how academic research can be translated into tangible global health impact when speed and coordination are critical.
WHO officials noted that Rift Valley fever outbreaks place a heavy burden on communities across Africa, affecting not only human health but also livestock, livelihoods and local economies. They said the current collaboration shows how partners can come together during emergencies to generate the scientific evidence needed to better protect populations at risk.
The Institute Pasteur de Dakar, which is playing a key role in regional preparedness, emphasized the importance of having investigational vaccines readily available in outbreak-prone areas. Its leadership said that the current outbreak highlights the urgent need for improved tools to protect people and communities, adding that local access to vaccine stockpiles are essential for rapid clinical studies and timely public health responses.
Rift Valley fever is a viral disease transmitted primarily by mosquitoes and through contact with infected animals. While many infections are mild, severe cases can lead to hemorrhagic fever, encephalitis or death. Outbreaks are often linked to heavy rainfall and flooding, which create favorable conditions for mosquito breeding.
Health authorities continue to monitor the situation closely in Senegal and Mauritania, while stressing that long-term investment in research, preparedness and international cooperation will be vital to reduce the impact of future outbreaks and to move closer to effective, widely available vaccines against emerging epidemic threats.
