In 1976, the Ebola virus was identified in central Africa and is currently one of the many emerging viruses that cause hemorrhagic fever. This type of fever has symptoms that include fever, massive bleeding, bruising, red eyes, headache, internal bleeding, bleeding from the nose, red spots on skin, diarrhea, and vomiting with blood. Hemorrhagic fever is fatal because it collapses the circulatory system. The photo above shows Ebola viruses budding out from a monkey cells.
Urry, Lisa A.. Campbell Biology (p. 407). Pearson Education. Kindle Edition.