[Prediction and prevention of malaria epidemics in the valley of the Senegal River].

The Sahel region has been suffering from severe drought for the last thirty years, with large deficits and a high degree of variability in the amount of annual rainfall. Agricultural production in the Sahelian zone of the Senegal River valley depends on the flooding of the river. The management of this flooding affects malaria transmission. The area is prone to malaria epidemics because the immunity level of the population is low. We studied epidemiological, meteorological and river level data to identify epidemic risk factors. We propose an epidemiological and managerial system for the early detection of risks and early intervention. This system is based mainly on the water level of the Senegal River and the early detection of unusual increases in the number of cases.