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 supports COVID-19 response in Peru as hospitals face collapse MSF supports COVID-19 response in Peru as hospitals face collapse](https://img.msf.org/AssetLink/66lh4gpu015nq856g5lvtxe575ja86n6.jpg)
COVID-19 leaves high numbers of deaths and overwhelmed hospitals in Peru
![MSF response to COVID-19 in Porto Velho - Rondonia MSF response to COVID-19 in Porto Velho - Rondonia](https://img.msf.org/AssetLink/53632g3742c8ff7qvr8g5658476510kc.jpg)
Failed COVID-19 response drives Brazil to humanitarian catastrophe
![MSF COVID Intervention in Aden, Al Gomhuria Hospital MSF COVID Intervention in Aden, Al Gomhuria Hospital](https://img.msf.org/AssetLink/pn2nijfcesl2ucx3y675x0ea460j7p7b.jpg)
COVID-19 support desperately needed as second wave overwhelms Yemen
![Arduous and lengthy treatment of tuberculosis Arduous and lengthy treatment of tuberculosis](https://img.msf.org/AssetLink/hr7b2103dcp2s6s5d2mw81o5tlsehhc6.jpg)
Three questions on worrying COVID-19 surge in Papua New Guinea
![Hebron- Medical Activities Hebron- Medical Activities](https://img.msf.org/AssetLink/84k7w2011r34d0ai0kg0ld287066wr06.jpg)
Vaccines urgently needed as Palestine struggles under surge of COVID-19
![MSF intervention in Lodi MSF intervention in Lodi](https://img.msf.org/AssetLink/0kd4w0fbb7end5ye1dgbrlh861tg3ujx.jpg)
A year of a pandemic: our response to COVID-19 in pictures
![Mental health activities in Manaus Mental health activities in Manaus](https://img.msf.org/AssetLink/lksqfr2883801v7et6a4dt5r1j363557.jpg)
One year of a pandemic
![EBOLA GUECKEDOU CONAKRY GUINEA 2014 EBOLA GUECKEDOU CONAKRY GUINEA 2014](https://img.msf.org/AssetLink/7ah4056lhgy40vcth3jw3y683x8b1wgg.jpg)
Five questions on the Ebola outbreak in Guinea
![“SECOND WAVE” OF COVID-19 “SECOND WAVE” OF COVID-19](https://img.msf.org/Doc_Prod/TR3/a/6/c/7/MSB47578.jpg)
Malawi is overwhelmed by second wave of COVID-19
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)