Ebola in Africa--discoveries in the past decade.

Within the past decade, Ebola haemorrhagic fever (EHF) has been recognised for the first time in four countries. Our understanding of the epidemiology, clinical aspects, laboratory diagnosis and control measures for EHF has improved considerably as a result of the outbreaks in these countries and the re-emergence that has occurred in another. The coordinated international responses to several of the large EHF outbreaks serve as models for controlling epidemics of other communicable diseases. This report is a chronological overview of the EHF outbreaks in Africa during the past decade, including the recent epidemics in Gabon and the Republic of the Congo, and highlights new discoveries and some of the remaining challenges.