PEORIA - Before this week, not many Americans were familiar with the word Ebola, but with two confirmed cases of Americans catching the disease in Africa, the word is spreading.
Ebola is a virus first identified in 1976.
Symptoms include fever, headache and joint and muscle pain.
The disease is spread through bodily fluids like blood.
This is not the first outbreak, but it is longest and largest one ever.
There are more than 700 confirmed deaths.
"These are pretty small countries, and there's a lot of movement across borders and that's probably the main, main issue,” Dr. George Johnson of the University of Illinois College of Medicine in Peoria said.
The disease has made it to four African countries so far: Guinea, Sierre Lione, Nigeria and Liberia.