Ebola Virus Disease Outbreaks Chronology

1976, Zaire. The first recognition of Ebola occurred in Yambuku and surrounding area. Disease was spread by close personal contact and by use of contaminated needles and syringes in hospitals/clinics. Cases: 318. Deaths: 280.

1995, Zaire. The outbreak occurred in Kikwit and surrounding area. Traced to index case-patient who worked in the forest adjoining the city. The epidemic spread through families and hospitals. Cases: 315. Deaths: 250.

2000-2001, Uganda. Occurred in Gulu, Masindi, and Mbarara districts of Uganda. The three most important risks associated with Ebola virus infection were attending funerals of Ebola hemorrhagic fever case-patients, having contact with case-patients in one's family, and providing medical care to Ebola case-patients without using adequate personal protective measures. Cases: 425. Deaths: 224.

2007, Democratic Republic of the Congo. Outbreak occurred in Kasai Occidental Province. The outbreak was declared over November 20. Last confirmed case on October 4 and last death on October 10. Cases: 264. Deaths: 187.

December 2007-January 2008, Uganda. Outbreak occurred in Bundibugyo District in western Uganda. First reported occurrence of a new strain. Cases: 149. Deaths: 37.

March 2014-Present, Guinea, Liberia, Sierra Leone. Outbreak across multiple countries in West Africa. Number of patients is constantly evolving due to the ongoing investigation. Cases: 28616. Deaths: 11310. (As of April, 2016)