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.
![](/themes/custom/msf_theme/src/kss/components/image/assets/bg-transparent.png)
52,600
52,6
4,268,600
4,268,6
![Mundri Emergency Room, Primary Healthcare Centre Mundri Emergency Room, Primary Healthcare Centre](https://img.msf.org/AssetLink/3m6570r1mbxj7x83k816b5416wnkf311.jpg)
Voices from the field
Despite all the preventive measures taken... expectations are bleak.Ayla Emmink, doctor in South Sudan responding to COVID-19
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
MSF teams react to 'biggest ever' cholera outbreak in Zimbabwe's capital
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
Sewage problems cause cholera outbreak in Zimbabwe
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
After measles vaccination campaign epidemic decreases in Nigeria
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
Over 4,000 cholera patients and 100 deaths in Katanga
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
Cholera spreads in several cities in Katanga province
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
MSF increases role as cholera outbreak picks up speed in the DRC
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
Letters from the Uganda ebola outbreak
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
End of ebola epidemic in Bundibugyo is near
![](/themes/custom/msf_theme/src/kss/components/image/assets/placeholder.jpg)
MSF teams confront an Ebola epidemic in Bundibugyo and Kikyo
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)