(EVD) is a severe disease that causes hemorrhagic fever in humans and animals . Diseases that cause hemorrhagic fevers, such as Ebola, are often fatal as they affect the body's vascular system (how blood moves through the body). This can lead to significant internal bleeding and organ failure. It is not known exactly how humans first become infected with the Ebola virus.
Recent evidence suggests that humans may initially get the virus through contact with infected animals. Once a person is infected, the virus can spread through person-to-person contact. Ebola can be spread through: ? contact with infected animals (bats, monkeys, gorillas, pigs, etc.) ? contact with blood, body fluids or tissues of infected persons ? contact with medical equipment, such as needles, contaminated with infected body fluids The disease typically occurs in outbreaks in tropical regions of Sub-Saharan Africa. From 1976 when it was first identified through 2013, the World Health Organization reported 1,716 confirmed cases.