Médecins Sans Frontières / Doctors Without Borders (MSF) is an international, independent medical humanitarian organization that helps people affected by conflict, epidemics, disasters, or exclusion from health care in more than 70 countries. Its teams comprise tens of thousands of health professionals as well as logistics and administrative staff bound together by MSF’s charter. MSF’s work is guided by medical ethics and the principles of impartiality, independence, and neutrality. MSF is a nonprofit, self-governed, member-based organization.