Guidance

Ebola and Marburg haemorrhagic fevers: outbreaks and case locations

Information about incidents and outbreaks of Ebola and Marburg, both viral haemorrhagic fevers (VHF), including maps.

Recent incidents and outbreaks

There are no current confirmed incidents of Ebola or Marburg virus disease.

Between March and June 2016, the three countries most significantly affected by Ebola virus disease (Guinea, Liberia and Sierra Leone) declared the end of their most recent outbreaks.

Final WHO Ebola situation report June 2016

The West Africa outbreak 2014 to 2016

On 23 March 2014, WHO confirmed an outbreak of Ebola virus disease in southeastern Guinea. This was the first time an outbreak had been diagnosed in this part of Africa, and the index case was traced back to December 2013.

The outbreak spread to neighbouring and nearby countries, particularly Liberia and Sierra Leone, and became the largest ever known outbreak of this disease. Prolonged virus persistence in survivors led to episodes of recrudesence in all three countries.

The outbreak continued for over two years and a total of 28,616 confirmed, probable and suspected cases were reported in Guinea, Liberia and Sierra Leone, with 11,310 deaths.

Linked Ebola outbreaks and cases in other countries (2014 to 2015)

  • Mali: two importations leading to a total of 8 cases

  • Nigeria: 20 cases in Lagos and Port Harcourt, following an initial importation from Liberia

  • Senegal: a single case imported from Guinea

  • Italy: one case in a returning healthcare worker

  • Spain: one case in a healthcare worker involved in the care of patients repatriated from West Africa

  • United Kingdom: a case was imported into Scotland in December 2014. This was the first Ebola case to be detected in the UK. The patient was a healthcare worker who had been working in an Ebola treatment centre in Sierra Leone

  • United States: a single EVD case was imported from Liberia into Texas in September 2014. Transmission to two healthcare workers subsequently occurred. A further case of EVD was confirmed in a humanitarian aid worker who returned from Guinea in October 2014

Uganda 2014 (Marburg)

On 5 October 2014, a case of Marburg virus disease was confirmed in Kampala. No further cases were confirmed, and WHO declared the country free of Marburg virus disease on 13 November 2014.

Democratic Republic of Congo 2014 (Ebola)

On 27 August 2014, WHO announced an Ebola outbreak in Equateur Province, north western Democratic Republic of Congo. This was unrelated to the West African outbreak occurring at the same time. A total of 66 cases were reported, and WHO declared the outbreak to be over on 21 November 2014.

Historic map of outbreaks

This map includes all cases and outbreaks of Ebola or Marburg documented to 31 December 2015. Further information on these historical outbreaks is available.

Ebola and Marburg cases in Africa