Berenil (diminazene aceturate)-resistant Trypanosoma congolense in cattle under natural tsetse challenge at Kibaha, Tanzania.


Twenty-nine cattle, naturally infected with Trypanosoma congolense Kibaha, were subjected to chemotherapy with diminazene aceturate (Berenil, Hoechst) at 3.5 to 14.0 mg/kg. Fourteen animals recovered while six were refractory to treatment at 7.0 to 14.0 mg/kg. Further treatment of the Berenil-resistant isolates with isometamidium chloride (Samorin, May and… (More)