Historical outbreak briefing · Updated May 30, 2026
1997 - Ebola haemorrhagic fever in Gabon (new outbreak) - Update 10
0 confirmed 0 probable 0 deaths Source: WHO
A new outbreak of Ebola haemorrhagic fever has been reported in Gabon, according to the World Health Organization's Disease Outbreak News. The first reported case occurred on 21 December 1997, and as of the latest update, a total of 52 cases have been detected through active surveillance and contact tracing.
Of the 52 confirmed cases, 40 have resulted in deaths, giving a case fatality ratio of 76.9%. The World Health Organization reports that all 52 cases have been confirmed, with no probable or suspected cases. The high number of deaths is a concern, but it is essential to note that the case fatality ratio may change as more information becomes available.
The outbreak is currently limited to Gabon, with no reported cases in other countries. There is no information available on any vessel or aircraft outbreaks.
The World Health Organization is closely monitoring the situation and providing updates on the outbreak. For the latest information, please visit the World Health Organization's Disease Outbreak News website at https://www.who.int/emergencies/disease-outbreak-news/item/1997_01_02-en.
Primary source: WHO — 1997 - Ebola haemorrhagic fever in Gabon (new outbreak) - Update 10