They evolve over decades; This is the case when a disease decimated the population, when an instability undermines the health system or when populations are gradually deprived of their access to care.
MSF seeks to help people who are most in need, wherever they are. The doctors perform more than eight million visits annually, and the medical activities range from basic vaccina-tion campaigns to complex surgical procedures. The organization also calls for the availability of affordable drugs and high quality for the poorest populations of the world.