Western African Ebola virus epidemic

The 2013–2016 epidemic of Ebola virus disease, centered in Western Africa, was the most widespread outbreak of the disease in history. It caused many deaths and socioeconomic problems in the region, mainly in Guinea, Liberia and Sierra Leone. The first cases were recorded in Guinea in December 2013; later, the disease spread to Liberia and Sierra Leone, with minor outbreaks occurring in Nigeria and Mali. 
Infections of medical workers happened in the United States and Spain. Isolated cases were recorded in Senegal, the United Kingdom and Italy. The number of cases peaked in October 2014 and then began to slow down.