Ebola is an often fatal infectious disease occurring in humans and some primates caused by the Ebola virus. It is a disease that damages blood vessels and can cause bleeding, diarrhea and shock. Its worst outbreak, in 1995, killed more than 250 people in the Democratic Republic of Congo. Nearly 150 people died in 2003 in the Congo from an Ebola outbreak. There is no known cure for Ebola, which is passed on by infected body fluids and kills between 50 percent and 90 percent of victims, depending on the strain.
