**Effects of Irrigated Rice Fields and Seasonality on** *Plasmodium* **Transmission in West Africa, Particularly in Central Côte d'Ivoire**

Benjamin G. Koudou1,2,3, Marcel Tanner4,5 and Juerg Utzinger4,5 *1Vector Group, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool 2Centre Suisse de Recherches Scientifiques, Abidjan, 3University of Abobo-Adjame´, Abidjan, 4Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, 5University of Basel, Basel, 1UK 2,3Côte d'Ivoire 4,5Switzerland* 
