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Marie Sembu, a nurse with the Congolese Ministry of Health, prepares an Ervebo vaccine injection during the launch event of the BRAVO study at the Bunia Provincial Public Health Laboratory.  

Marie Sembu, infirmière du ministère de la Santé de la République démocratique du Congo, prépare l'injection du vaccin Ervebo lors de l’événement de lancement de l’étude BRAVO au Laboratoire provincial de santé publique de Bunia.
Marie Sembu, a nurse with the Congolese Ministry of Health, prepares an ERVEBO® vaccine injection during the launch event of the BRAVO study at the Bunia Provincial Public Health Laboratory. Democratic Republic of Congo, September 2026.
© Kristen Poels/MSF

An international, independent medical humanitarian organisation

We provide medical assistance to people affected by conflict, epidemics, disasters, or exclusion from healthcare. Our teams are made up of tens of thousands of health professionals, logistic and administrative staff - most of them hired locally. Our actions are guided by medical ethics and the principles of impartiality, independence and neutrality.

Where we work

In more than 70 countries, Médecins Sans Frontières provides medical humanitarian assistance to save lives and ease the suffering of people in crisis situations.

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The place names and boundaries in this map do not reflect any position by MSF on their legal status. This map uses the Gall-Peters equal-area map projection.

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The place names and boundaries in this map do not reflect any position by MSF on their legal status. This map uses the Gall-Peters equal-area map projection.

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Welcome to Médecins Sans Frontières/Doctors Without Borders

Working with MSF

What's it like to work with MSF?

We rely on a strong network of professionals to deliver life-saving medical aid.

Each year, thousands of international and locally-hired staff work together around the globe to provide lifesaving medical assistance to people who would otherwise be denied access to healthcare.

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