**4. Results**

#### **4.1 Variability of the intergenic region of the mini-exon gene**

All 14 isolates of *T. cruzi* analyzed showed a band of 150 bp characteristic of the zymodeme III. Still in the same analysis also showed bands with a lower intensity of ~ 250pb characteristic of the group TcII, suggesting the presence of possible blends in the isolates (**Figure 1**).
