No one knows exactly how Ebola is maintained as a reservoir in the wild.

Outbreaks have occurred in Zaire, the Democratic Republic of Congo, Gabon, Sudan, and Ivory Coast, affecting humans, monkeys, and chimpanzees.
The virus is spread by direct contact with blood, secretions, or organs of those infected. Hospital workers in those countries are at risk, but travelers have a relatively low risk.
Symptoms occur a few days after contamination with high fever, sore throat, headache and muscle aches, stomach pains, diarrhea and fatigue.

On day 5 an itchy pink rash spreads first on the face then the rest of the body.

Other symptoms include a dry cough, red and irritable eyes and vomiting blood and bloody diarrhea.

After a week severe cases of bleeding may occur. It is survivable and the individual factors that allow some to survive are still poorly understood.
Blood test can confirm Ebola if suspected.

There is no specific treatment although IV anti-viral may help.

It should be noted that Ebola while flashy is very rare and many more people die of measles and other diseases each day.

Recently an Ebola vaccine has been developed

Ebola links
CDC http://www.cdc.gov/ncidod/dvrd/spb/mnpages/dispages/ebola.htm

Who http://www.who.int/csr/disease/ebola/en/
Ebola Home Page http://www.geocities.com/CapeCanaveral/Lab/5738/level4.html

British Medical Journal http://bmj.bmjjournals.com/archive/6991e-2.htm