Outbreaks of cholera, measles and yellow fever can spread rapidly and be fatal. Malaria is endemic in more than 100 countries. Millions are living with HIV/AIDS and tuberculosis. Viral haemorrhagic diseases such as Ebola or Marburg are rarer, but are potentially fatal. The coronavirus COVID-19 pandemic has affected virtually every country on earth, infecting tens of millions of people and resulting in the death of over a million more.
The people at highest risk are mainly those living in poverty or in areas of great instability, such as in armed conflict or during mass displacement, where living conditions are precarious, access to healthcare is limited, and vaccination coverage is low.
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Featured
![Ebola declining in Liberia Ebola declining in Liberia](https://img.msf.org/AssetLink/04hr3y264n048r68hn7isv8b8tdtgdfd.jpg)
“We need to make sure that no one slips through the cracks”
![Ebola decline in Liberia Ebola decline in Liberia](https://img.msf.org/AssetLink/7687j16402d40375436i0a161m0h1djj.jpg)
Ebola drug trial in Liberia halted
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Crisis update - 30 January 2015
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Adama - a mother saved against all odds
![Pregnancy and Ebola in Sierra Leone Pregnancy and Ebola in Sierra Leone](https://img.msf.org/AssetLink/l58sbi6m4e3886hb8713d7o317n20415.jpg)
Sierra Leone: "This has been the hardest but also the best thing that I have done"
![Ebola treatment centre Freetown Ebola treatment centre Freetown](https://img.msf.org/Docs/MSF/Media/CMS3/7/4/a/4/MSB16250.jpg)
MSF opens maternity unit for pregnant women with Ebola
![Jenn Duncombe MSF Epidemiologist Kailahun Sierra Leone Jenn Duncombe MSF Epidemiologist Kailahun Sierra Leone](https://img.msf.org/Docs/MSF/Media/CMS3/f/d/8/d/MSB17450.jpg)
"The most unlikely people survived" – An Australian epidemiologist recounts her time in Sierra Leone
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MSF's address to the UN Special Session of the Executive Board on the Ebola response
![Ebola decline in Liberia Ebola decline in Liberia](https://img.msf.org/AssetLink/7687j16402d40375436i0a161m0h1djj.jpg)
Decline encouraging, but critical gaps remain
Research & Analysis
MSF publishes study on the accuracy of HIV rapid diagnostic tests
Treating, Containing, Mobilizing: The Role of MSF in the West African Ebola Epidemic Response
![Ebola, Equateur province, DRC Ebola, Equateur province, DRC](https://img.msf.org/AssetLink/u16pej06p0elay840om2vu6aj612pe06.jpg)
MSF supported research on Ebola
![Kyrgyzstan - Decentralized care for TB patients Kyrgyzstan - Decentralized care for TB patients](https://img.msf.org/Docs/MSF/Media/CMS3/2/b/8/c/MSF149408.jpg)
New survey shows outdated policies and practices risk further spread of drug-resistant TB
![Meningitis Epidemic in Niger Meningitis Epidemic in Niger](https://img.msf.org/AssetLink/m3ll72b1v84414j21qdp73311m8uy5o1.jpg)
Epidemics: Neglected emergencies?
![Ebola in Paynesville, Liberia Ebola in Paynesville, Liberia](https://img.msf.org/Docs/MSF/Media/CMS3/9/8/a/4/MSB13568.jpg)
Ebola: Pushed to the limit and beyond
![MSF treats DR-TB cases MSF treats DR-TB cases](https://img.msf.org/AssetLink/5566774pfu3d53jvuq653348087bdtx6.jpg)