Yellow Fever Vaccination Campaign in Kinshasa
Yellow fever can be prevented with a vaccine - yet it's a disease that claims the lives of an estimated 30,000 - 60,000 people each year.

Yellow fever is an acute haemorrhagic infection transmitted by the bite of a mosquito. There is no specific treatment for it. A number of severe outbreaks around the world in the 19th and 20th centuries led to the development of a highly effective vaccine. Systematic vaccination campaigns have considerably reduced yellow fever epidemics but sub-optimal vaccination coverage across several countries in Africa has allowed new outbreaks of the disease to emerge.

Most people only develop a mild form of the disease, with symptoms including fever, headache, muscle pain and nausea. After three or four days, they start to recover. But a small percentage of people enter a second phase that can be fatal.

Quick facts about yellow fever


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Vaccines urgently needed to treat yellow fever epidemic

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MSF working at yellow fever outbreak in Guinea

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We produce important research based on our field experience. So far, we have published articles in over 100 peer-reviewed journals. These articles have often changed clinical practice and have been used for humanitarian advocacy. All of these articles can be found on our dedicated Field Research website.

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20 January 2020