Tstetes flies have been eradicated in an entire region of Senegal. This victory was due to be announced by Senegal's president at a ceremony on Dec. 8. It is the fruit of a longstanding collaboration between CIRAD, the Institut Sénégalais de recherches agricoles (ISRA), Senegalese veterinary services, the Ministry of Agriculture and the International Atomic Energy Agency. After several other stages, releasing sterile males finally eradicated the last remaining wild tsetse flies.