Ebola Virus Disease (EVD)
Explore this page for Ebola Virus Disease information, resources, and news.
About Ebola virus disease
According to the World Health Organization, Ebola virus disease (EVD), previously referred to as Ebola hemorrhagic fever, is a rare yet severe illness in humans, often resulting in fatalities. The transmission of the virus occurs from wild animals to humans and subsequently spreads through human-to-human contact.
Zaire ebolavirus (Ebola virus)
The Zaire ebolavirus strain caused Ebola virus disease (EVD), and was named for Zaire, now the Democratic Republic of the Congo (DRC), the country where it was first found. On September 2025, the DRC Ministry of Public Health officially declared an outbreak in the Kasai Province of the DRC, the 16th outbreak since te virus was discovered in 1976.
Sudan ebolavirus (Sudan virus)
Outbreaks caused by the Sudan virus are specifically identified as Sudan virus disease (SVD) outbreaks. Sudan virus disease was identified in southern Sudan in June 1976, and has re-emerged periodically, with seven reported outbreaks attributed to SUDV—four occurring in Uganda and three in Sudan.