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.
March 31 - The Ebola outbreak is reported to have made several cases in Sierra Leone.[1]
June 6 - The World Health Organization estimates that an outbreak of the Ebola virus has killed more than 200 people in West Africa.
June 11 - Sierra Leone closed its borders with Liberia and Guinea and closed a number of schools around the country.[4] On 30 July, the government began to deploy troops to enforce quarantines.[5]
August 1 - Liberia and Sierra Leone declare a state of emergency in response to the Ebola virus disease by sending in troops and ordering the closure of schools and markets and the quarantining of affected communities.
August 4 - The World Health Organization estimates that the death toll from the Ebola virus outbreak has risen to 887.
August 6 - The World Health Organization reports that 932 have died from the latest outbreak of the Ebola virus with a man reportedly dying of the disease in Jeddah, Saudi Arabia after a business trip to Sierra Leone.
October 14 - 800 Sierra Leone peacekeepers due to relieve a contingent deployed in Somalia were placed under quarantine when one of the soldiers tested positive for Ebola.[14]
October 16 - The Emergency Operations Center announced two Ebola cases in the Koinadugu district in the far north. This marks the arrival of cases in every district in the country.[15]
October 21 - Riots broke out in the Kono district to prevent the quarantine of a 90-year-old woman suspected of having EVD; the youths are reportedly angry that there are no treatment centers in the diamond-rich Kono district. A daytime curfew is imposed.[16]