Current Situation

Cases in the most affected countries

  • The decline in confirmed cases of Ebola virus disease (EVD) has halted over the last three weeks. To accelerate the decline towards zero cases will require stronger community engagement, improved contact tracing and earlier case identification. In the week to 19 April, a total of 33 confirmed cases was reported, compared with 37 and 30 in the preceding weeks.
  • In the week to 19 April, Guinea reported 21 confirmed cases, compared with 28 cases the previous week. Sierra Leone reported 12 confirmed cases, compared with 9 cases reported the previous week. Liberia reported no confirmed cases.
  • A total of 4 Guinean prefectures reported at least one confirmed case in the week to 19 April, compared with 5 the previous week. Transmission remains confined to the west of the country and is primarily focused on the prefecture of Forecariah, bordering Sierra Leone, which reported 86% of national confirmed cases. 

About Ebola

Our Work

WHO works with national governments and leads the international community to provide emergency health services in countries with widespread Ebola transmission as well as prevent outbreaks in countries that are unaffected.


Stop transmission in all affected countries by:

  • Identify and trace people with Ebola
  • Care for persons with Ebola
  • Safe and dignified burials
  • Infection prevention and control

Prevent outbreaks in any new countries:

  • Cross border preparedness and communication
  • Preparedness in unaffected countries
  • Rapid response teams for new outbreaks
Research and Development

Fast track access to new health technologies:

  • New vaccines
  • Rapid diagnostics
  • Treatments
  • Blood products

Get Involved


Funding requirements for WHO Ebola response plan, March - December 2015

If you want to play a more direct role in the response then consider WHO vacancies and also visit UN Volunteering in the West Africa region.


24 April 2015

Mikiko Senga, a WHO epidemiologist specializing in emerging diseases was sent to Kenema, Sierra Leone in early June 2014 to gather data about the Ebola outbreak.

21 April 2015

Improved blood systems could result from work being done as part of the fight against the outbreak in Guinea, Liberia and Sierra Leone, the 3 countries most severely affected by Ebola.

20 April 2015

Aminata Kobie is a health promotion officer in WHO's Sierra Leone Country Office.

17 April 2015

Four weeks ago, Sai Conteh, a senior nurse anesthetist at the Kambia Government Hospital in Sierra Leone, was trained on how to protect herself against becoming infected with Ebola virus.

16 April 2015

1. The Ebola outbreak which started in Dec 2013 became a public health, humanitarian and socioeconomic crisis, with devastating impact on families, communities and affected countries.

WHO timeline tweets

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