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2500 2000 1500 1000 T T 500 0 EEP-01 EEP-02 EEP-03EEP-04EEP-05E EEP-06 EEP-07 EEP-08 EEP-09 EEP-10 EEP-11 group A group B group Figure 4. Effect of the Brazilian propolis extracts against bloodstream trypomastigotes of Trypanosoma cruzi after day of treatment at 4°C. The bars represent the standard deviation of at least three independent experiments. The activity of EEP-01 was higher than that of EEP-02, EEP-04 and EEP-03 (P the activity of EEP-07 was higher than that of EEP-06 (P <0.05); the activity of EEP-9 was higher than that of EEP-8, which has higher than that of EEP-10 (P<0.05).