28 May 1995
Ebola Hemorrhagic Fever (EBF) also known as Ebola virus a virus that kills its host by  attacking the lining of the cells and coagulating the blood in the human body.. This virus is named after the Ebola River valley which was near the site of the first outbreak of the virus in 1976. It is thought that bats harbour the disease, and transmit it to antelopes, monkeys, and gorillas. Humans eat of the flesh of these infected animals.  Transmission between humans occurs when people come in contact with bodily fluids of persons infected with the disease. Most cases of this disease occur in the rainforest areas of Africa where humans are most likely to come into contact with infected animals. It has been speculated that the lethalness of the virus can be ascribed to the fact that infections largely occur in areas devoid of humans where diseases may have evolved to which we have no immunity. The outbreak of the Ebola virus in the Democratic Republic of the Congo (DRC, then known as Zaire) in 1995 killed 153 people by the 28 May 1995.  The 1995 outbreak in the DRC infected 315 people, 244 who eventually succumbed to the virus.
References

StanFord ,Ebola Zaire Outbreaks ,From: StanFord,(online), available at: virus.stanford.edu [Accessed 17 May 2010]|CNN,Fear among us: Deadly Ebola virus lurks in the shadows",from:CNN, (online), available at: edition.cnn.com [Accessed 17 May 2010]