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
![Franck Ale - MSF Epidemiologist Franck Ale - MSF Epidemiologist](https://img.msf.org/AssetLink/k4q67i5w87ov5sxyxx5ndga576x1m16n.jpg)
How to identify the causes of an epidemic and respond strategically
![MSF working to prevent a new cholera epidemic in northern Cameroon MSF working to prevent a new cholera epidemic in northern Cameroon](https://img.msf.org/AssetLink/t2whmlllsr620284jg2kmc5sv82fel25.jpg)
A multidisciplinary approach to stem the spread of cholera
![Measles vaccination in Mai-Ndombe Province Measles vaccination in Mai-Ndombe Province](https://img.msf.org/AssetLink/8inpaja0d8uc5ol38vu8sxxq85423dfg.jpg)
A deadly measles outbreak is spreading like wildfire
![Decontamination activities in Kalunguta health zone, North Kivu province, DRC Decontamination activities in Kalunguta health zone, North Kivu province, DRC](https://img.msf.org/AssetLink/p480m6yhlaj078gsq2t8lhdb6h7ob5g2.jpg)
10 facts on a year of Ebola in DRC
![Decontamination activities in Kalunguta health zone, North Kivu province, DRC Decontamination activities in Kalunguta health zone, North Kivu province, DRC](https://img.msf.org/AssetLink/o6uj386m2sqi11vav28n2py70718cloe.jpg)
DRC Ebola outbreak response struggling one year on
![Measles campaign in DRC Measles campaign in DRC](https://img.msf.org/AssetLink/j7ppbbf63y0f06tb1i7vs445o6wpy71c.jpg)
Massive mobilisation urgently needed to curb fast-spreading measles outbreak
![MSF supported cholera treatment center in Al-Sadaqa hospital, Aden, Yemen MSF supported cholera treatment center in Al-Sadaqa hospital, Aden, Yemen](https://img.msf.org/AssetLink/f4w7cajkx75x3k1tlt46xl7503qb11qh.jpg)
MSF treats exponential increase in cholera cases since start of 2019
![Ebola outbreak - Butembo Ebola outbreak - Butembo](https://img.msf.org/AssetLink/4122j03f0jx31fs8b2km1tm7m2ag0e1u.jpg)
Ebola response failing to gain the upper hand on the epidemic
![Measles epidemic in (ex-) Katanga Province Measles epidemic in (ex-) Katanga Province](https://img.msf.org/AssetLink/66c8dco230n5a4rg12h8y4rq33156rr2.jpg)
Even during a widespread measles epidemic, we can save kids’ lives
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)