Rift Valley fever (RVF) is an acute viral hemorrhagic fever that is most commonly seen in domesticated animals such as cattle, buffalo, sheep, goats, and camels and can cause illness in people. The disease is caused by RVF virus.
RVF was first reported in livestock by Veterinary officers in Kenya’s Rift Valley in the early 1910s. It is generally found in regions of eastern and southern Africa, but exists in most of sub-Saharan Africa, including West Africa and Madagascar.