Ebola hemorrhagic fever is a fatal disease in humans or primates. Ebola has been classified under the zoonoses (diseases spread from animals to humans) family of viruses. Ever since then, experts have been researching for cures, causes, and ways to prevent this disease that has been killing people over the years. Cases of Ebola hemorrhagic fever has been occurring in the Democratic Republic of the Congo, Gabon, Sudan, the Ivory Coast, and Uganda since 1976. Thus far, no cases have been reported (in humans) in the United States. Ebola affects people who come in contact with the host of the disease.