<unk> , more commonly known as<unk>  (;<unk> , is one of six known species within the genus<unk> . Four of the six known<unk> es, including<unk> , cause a severe and often fatal hemorrhagic fever in humans and other mammals, known as<unk>  disease (EVD).<unk>  has caused the majority of human deaths from EVD, and was the cause of the 2013–2016 epidemic in western Africa, which resulted in at least suspected cases and confirmed deaths.<unk>  and its genus were both originally named for<unk>  (now the Democratic Republic of the Congo), the country where it was first described, and was at first suspected to be a new "strain" of the closely related Marburg virus. The virus was renamed "Ebola virus" in 2010 to avoid confusion.<unk>  is the single member of the species<unk> , which is assigned to the genus<unk> , family Filoviridae, order Mononegavirales. The members of the species are called<unk> es. The natural reservoir of<unk>  is believed to be bats, particularly fruit bats, and it is primarily transmitted between humans and from animals to humans through body fluids. The<unk>  genome is a single-stranded RNA, approximately 19,000 nucleotides long. It encodes seven structural proteins: nucleoprotein (NP), polymerase cofactor (VP35), (VP40), GP, transcription activator (VP30), VP24, and RNA-dependent RNA polymerase (L). Because of its high fatality rate (up to 83 to 90 percent),<unk>  is also listed as a select agent, World Health Organization Risk Group 4 Pathogen (requiring Biosafety Level 4-equivalent containment), a US National Institutes of Health/National Institute of Allergy and Infectious Diseases Category A Priority Pathogen, US CDC Centers for Disease Control and Prevention Category A Bioterrorism Agent, and a Biological Agent for Export Control by the Australia Group.
Zaire ebolavirus
Zika virus
Lassa mammarenavirus
Sepik virus
Bourbon virus
West Nile virus
Western equine encephalitis virus
Muju virus