Figure 1

Weekly incidence rates of suspected meningitis in six sanitary districts of Burkina Faso, 2004-2008. The districts are situated in the sanitary regions Hauts-Bassins (Dandé, Houndé, Orodara, Secteur 15 and Secteur 22) and Centre Nord (Boulsa). The weekly incidence rates (per 100,000 inhabitants) are based on the national routine case reporting system and population estimates as provided by sanitary authorities.