1. Ebola haemorrhagic fever in Zaire, 1976;Bull. World Health Organ.,1978
2. Ebola haemorrhagic fever in Sudan, 1976;Report of a WHO/International Study Team;Bull. World Health Organ.,1978
3. CDC. (2018).Ebola virus disease distribution map.https://www.cdc.gov/vhf/ebola/outbreaks/history/distribution‐map.html(02/25).
4. CDC. (2017).Ebola (Ebola virus disease) signs and symptoms.https://www.cdc.gov/vhf/ebola/symptoms/index.html(accessed 5 March 2019).
5. Basic Clinical and Laboratory Features of Filoviral Hemorrhagic Fever