Gives a history of the appearance of the Ebola and Marburg viruses and details the characteristics of the Ebola virus and techniques used to research it. Ebola, or hemorrhagic fever (Ebola HF), is a disease that affects both humans and nonhuman primates,including monkeys, gorillas, and chimpanzees.Gives a history of the appearance of the Ebola and Marburg viruses and details the characteristics of the Ebola virus and techniques used to research it.