The Ebola virus belongs to the hemorrhagic viral fevers of which the following families are known:
Bunyaviridae: Rift valley fever, Crimean-Congo hemorrhagic fever, Hantavirus
Flaviviridae: Yellow fever, Dengue fever, Omsk hemorrhagic
Arenaviridae: Lassa
Filoviridae: Marbug virus and Ebola virus
Strains: Zaïre-Ebolavirus, Soudan-Ebolavirus, Taï Forest-Ebolavirus, Bundibugyo-Ebolavirus, Reston-Ebolavirus