The Ebola virus is also known as Ebola Hemorrhagic Fever. It is one of the deadliest diseases known to man. It kills up to 90% of all its victims. Its symptoms include a sudden fever, weakness, pain in muscles, a headache and a sore throat. These symptoms begin four to sixteen days after the infection. Next comes vomiting, diarrhea, rashes, limited kidney and body functions and internal and external bleeding. In 1976, the Ebola virus killed 340 people in Zaire. There was no medicine for the people there. Scientists couldn't find a cure because they couldn't find a source of the virus. There is still no cure today. Scientists have been studying Ebola from 1976 to 1996. Ebola is one of the RNA viruses known as filoviruses. The RNA filoviruses are the Marburg virus and the four Ebola viruses. The four Ebola viruses are Ebola Zaire, Ebola Reston, Ebola Sudan and Ebola Tai. Ebola Reston only attacks monkeys. It spreads airborne. If the other Ebola viruses that attack humans were spread airborne, the result would be deadly. All the types of Ebola except Ebola Reston spread through personal contact. The first and only outbreak of Ebola Reston was in 1989 in Reston, Virginia. Even though scientists have studied Ebola for 20 years there is still a lot to know about it. It is very hard to get a specimen of the virus to study it because it is so deadly. Many organizations are trying to fight off Ebola. Many scientists have been sent to Zaire to study and control Ebola. They collect specimens and study them. Most of all they try to find the source of Ebola.   Some doctors dealing with patients that had Ebola got infected. Ebola is one very deadly virus and hopefully people will find a cure for it soon.