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The Ebola virus was previously known as the Ebola hemorrhagic fever. The virus is very severe and is often fatal in humans. Animals transmit the virus to humans, who then pass it to others through human contact. The first outbreaks occurred in 1976 in Nzara, Sudan, and Yambuku, Democratic Republic of Congo. Symptoms of the Ebola Virus include the sudden onset of fever, fatigue, muscle pain, headache, and a sore throat. The symptoms can be followed by vomiting, diarrhea, rash, symptoms of impaired kidney and liver function, and internal and external bleeding.