We carried out a study on malaria morbidity from November 1982 to October 1983 in the Pediatric Department of the Hospital of Bobo Dioulasso (Burkina Faso, West Africa). Malaria fever attacks were present in 21.4% of all febrile cases. The highest rate was observed in the 2-4 age group (42%). We observed 97.4% of all malaria fever attacks during the rainy season and the beginning of the dry season (June to December).