March 18 - Guinean health officials announced the Ebola outbreak of a mysterious hemorrhagic fever "which strikes like lightning." 35 cases are reported, and at least 23 people died.[1]
March 23 - The United Nations Children's Fund reports that an outbreak of the deadly Ebola virus that has so far claimed the lives of 59 victims has spread from southern Guinea to the capital Conakry.
March 24 - An outbreak of Ebola virus which has killed at least 59 people in Guinea continues its spread, entering Liberia and threatens to spread to Sierra Leone.
July 14 - The Ebola virus outbreak in West Africa continues to get worse with the death toll now exceeding 500.
July 31 - The World Health Organization announces a US$100 million emergency response plan to combat the outbreak, which has killed at least 729 people.
November 13 - The World Health Organization reports that the death toll in the three worst affected countries in West Africa - Guinea, Liberia and Sierra Leone - has passed 5,000.