Résumé
A parasitological and entomological survey was conducted in the Sideradougou area (South of Bobo Dioulasso, Burkina Faso) in order to identify transmission factors of Africa animal trypanosomis. A total of 3600 tsetse flies (#Glossina tachinoides#, #Glossina palpalis gambiensis#) werere captured along 120 km of linear gallery forest and half were dissected, PCR analysis was undertaken on parasitologically positive flies (161 #G. tachinoides#, 92 #G. palpalis gambiensis) to characteize the different trypanosomes. All the results were integrated in a GIS (Geographical Information System). Spatial repartition of the characterized trypanosomes enabled to recognize different areas with specific patterns of infection. Relations with environmental factors are discussed. (Résumé d'auteur)