Himeidan, Y.E. Hamid, E.E. Thalib, L. El Bashir, M.I. Adam, I. 2007 The study investigated the role of climatic variables and irrigated agricultural on the seasonality of malaria transmission in New Halfa, eastern Sudan. A time series analysis was performed using monthly climatic variables, monthly water available for irrigation of crops and monthly slide positive rate of malaria during the period 1986 2002. Cases of malaria were reported every month of the year with a mean of 13.0 100 persons month 95 CI: 11.9 14.2 , and bimodal annual pattern in autumn and winter seasons. Rainfall was the significant climatic ...