Where does it strike?
Ebola outbreaks occur primarily in remote villages in Central and West Africa, near tropical rainforests. It was first discovered in the Democratic Republic of Congo in 1976 since when it has mostly affected countries further east, such as Uganda and Sudan. This year's outbreak is unusual because it started in Guinea, which has never before been affected, and it quickly spread to urban areas. From Nzerekore, a remote area of south-eastern Guinea, the virus spread to the capital, Conakry, and neighbouring Liberia and Sierra Leone.