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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![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
![MSF Yellow Fever Vaccination in DRC MSF Yellow Fever Vaccination in DRC](https://img.msf.org/AssetLink/ub78nateo5lt02tm825s5ejb2ts052l2.jpg)
MSF teams help curb yellow fever
![Kenya - Cholera epidemic in Dadaab refugee camps Kenya - Cholera epidemic in Dadaab refugee camps](https://img.msf.org/AssetLink/w7p1y00luiy086e378l0b207fn2pscmt.jpg)
Double outbreak of cholera and chikungunya placing huge strain on Mandera medical services
![Niger: MSF response to meningitis, measles and cholera outbreaks Niger: MSF response to meningitis, measles and cholera outbreaks](https://img.msf.org/Docs/MSF/Media/CMS3/a/2/7/0/MSF167842.jpg)
MSF teams respond to two epidemics and ward off a third
![Activities Kailahun Sierra Leone Activities Kailahun Sierra Leone](https://img.msf.org/AssetLink/x8m2ydo0533730s747k21xokdt515q4o.jpg)
MSF calls on G7 leaders to urgently address the critical gaps in global response to public health emergencies and unite to lower the price of live-saving medicines
![DRC: MSF respond to a massive malaria outreak in Pawa and Boma-Mangbetu DRC: MSF respond to a massive malaria outreak in Pawa and Boma-Mangbetu](https://img.msf.org/AssetLink/cp26b4q350q75a6a400vsf8b287n338w.jpg)
MSF responds to a particularly deadly outbreak of malaria in the north east of the country
![Meningitis Vaccination Campaign, Niger Meningitis Vaccination Campaign, Niger](https://img.msf.org/AssetLink/50bc5o6ul675px60046t37jk325h5ebh.jpg)
MSF responds to a meningitis epidemic
![Zambia, cholera vaccination in Lusaka Zambia, cholera vaccination in Lusaka](https://img.msf.org/AssetLink/hh4m814fo1n7k7pc23ngiik1hme18acd.jpg)
Largest ever oral cholera vaccination campaign underway in Lusaka
![Cholera response on and around lake Chilwa Cholera response on and around lake Chilwa](https://img.msf.org/AssetLink/w8yk0xbjhhs67u5072w3i82oy627nt74.jpg)
A cholera response among fishing communities on and around Lake Chilwa
![Ebola, Equateur province, DRC Ebola, Equateur province, DRC](https://img.msf.org/AssetLink/u16pej06p0elay840om2vu6aj612pe06.jpg)
MSF supported research on Ebola
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)