Cholera cases in Mirebalais, seven communes (St-Marc, Dessalines, Desdunes, Grande Saline, Lestere, Petite-Rivière-de-l'Artibonite, Verrettes) and other communes (in Nord and Sue-Est) of Haiti (data obtained from Piarroux and others37). Daily rainfall data were obtained from the Tropical Rainfall Measuring Mission (TRMM) satellite (black).