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By Mayo Clinic staffEbola virus and Marburg virus are related viruses that cause hemorrhagic fevers — illnesses marked by severe bleeding (hemorrhage), organ failure and, in many cases, death. Both Ebola virus and Marburg virus are native to Africa, where sporadic outbreaks have occurred for decades. No human cases of Ebola virus have been reported in the United States.
Ebola and Marburg viruses live in one or more animal hosts, and humans can contract the viruses from infected animals. After the initial transmission, the viruses can spread from person-to-person through contact with body fluids or contaminated needles.
No effective therapy exists for the hemorrhagic fevers caused by Ebola virus and Marburg virus. People diagnosed with Ebola virus or Marburg virus receive supportive care and treatment for complications.
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