What is it: Rift Valley fever (RVF) is an acute, fever-causing viral disease that affects domestic animals (such as cattle, buffalo, sheep, goats, and camels) and humans.  RVF is most commonly associated with mosquito-borne epidemics during years of heavy rainfall.

Where could I get it: RVF is generally found in regions of eastern and southern Africa where sheep and cattle are raised.  However, RVF virus also exists in most countries of sub-Saharan Africa and Madagascar.

What happens if I get it: people with RVF typically have either no symptoms or a mild illness associated with fever and liver abnormalities.  In some more extreme cases, it can lead to hemorrhagic fever (which can lead to shock or haemorrhage), encephalitis (inflammation of the brain, which can lead to headaches, coma, or seizures), and eye disease.

What do I do if I get it: usually patients recover within two days to one week after onset of illness.  About 1% of humans that become infected with RVF die of the disease.  There is no specific treatment – just rest and taking plenty of fluids.

How can I prevent catching Rift Valley Fever: avoid bites of mosquitoes and other blood-sucking insects, so use of mosquito repellents and bed nets.  Also you should avoid exposure to blood or tissues of animals that may potentially be infected.