Often referred to simply as "Ebola," Ebola hemorrhagic fever is a contagious illness that is often fatal in humans. Typically, between 50 percent and 90 percent of people with Ebola will not survive the infection.
This condition is caused by infection with the Ebola virus. Outbreaks have occurred in several African countries, including Sudan, Uganda, and the Ivory Coast. Symptoms of this illness often start abruptly. Fever, sore throat, weakness, and diarrhea are some of the most commonly reported effects.
Treatment for Ebola involves relieving symptoms while the body fights the infection. There is no treatment that can kill the virus, nor is there a vaccine that can prevent infection in the first place.
(For more info, click Ebola. This full-length article talks in detail about how the virus is spread, how Ebola could be used as a form of bioterrorism, and more.)