WHO is the directing and coordinating authority for health within the United Nations system. The organization is responsible for providing leadership on global health matters, shaping the health research agenda, setting norms and standards, articulating evidence-based policy options, providing technical support to countries and monitoring and assessing health trends. WHO in the African Region have programs focusing on: communicable and non-communicable diseases; family and reproductive health; general management and coordination; director program management; health systems and services; and health emergencies.
More details: http://www.afro.who.int/
The publications link provides all resources. You can also search the African Region WHO African Region Library.