Rift Valley fever (RVF) is a viral disease that can cause mild to severe symptoms.The mild symptoms may include: fever, muscle pains, and headaches which often last for up to a week. The severe symptoms may include: loss of sight beginning three weeks after the infection, infections of the brain causing severe headaches and confusion, and bleeding together with liver problems which may occur within the first few days. Those who have bleeding have a chance of death as high as 50%.Potentially, establishing environmental monitoring and case surveillance systems may aid in the prediction and control of future RVF outbreaks