Ebola virus (EBOV) is a kind of enveloped negative-stranded RNA virus. This virus belongs to family Filoviridae, which has a unique morphology similar to Marburg virus, but obviously has no antigen characteristics of Marburg virus. EBOV disease (EVD) is a serious and fatal disease caused by EBOV, which has been proved to cause hemorrhagic fever in humans and other mammals, including monkeys and chimpanzees. EVD outbreaks usually begin with a possible zoonotic transmission, and then spread from person to person through direct contact with infected body fluids or contaminated mites. EVD has a high mortality rate and is characterized by fever, gastrointestinal symptoms and multiple organ dysfunction syndrome.