The term "viral hemorrhagic fever" characterizes a severe multisystem syndrome associated with fever, shock, and bleeding diathesis caused by infection with any of several RNA viruses, including Ebola virus and Marburg virus (MARV) (family Filoviridae); Lassa virus (LASV) and the South American hemorrhagic fever viruses Guanarito virus,
Junin virus, Machupo virus, and Sabifi virus (Arenaviridae); Rift Valley fever virus (RVFV), Crimean-Congo hemorrhagic fever virus (CCHFV), and hantaviruses (Bunyaviridae); and Kyasanur Forest disease virus (KFDV), Omsk hemorrhagic fever virus, yellow fever virus (YFV), and dengue viruses (Flaviviridae) (1,2).