The<unk> s <unk> s) are a diverse group of animal and human illnesses that are caused by five distinct families of RNA viruses: the Arenaviridae, Filoviridae, Bunyaviridae, Togaviridae, and Flaviviridae. All types of<unk>  are characterized by fever and bleeding disorders and all can progress to high fever, shock and death in extreme cases. Some of the<unk>  agents cause relatively mild illnesses, such as the Scandinavian nephropathia epidemica, whilst others, such as the African Ebola virus, can cause severe, life-threatening disease.
Viral hemorrhagic fever
Argentine hemorrhagic fever
Crimean-Congo hemorrhagic fever
Dengue fever
Blackwater fever
Malaria
Venezuelan hemorrhagic fever
Boutonneuse fever