| argentina | chaco province | biomphalaria occidentalis | species | 70 | 0 |
| argentina | corrientes province | biomphalaria occidentalis | species | 50 | 0 |
| brazil | | biomphalaria occidentalis | species | 3 | 0 |
| brazil | mato grosso | biomphalaria occidentalis | species | 3 | 1 |
| brazil | mato grosso do sul | biomphalaria occidentalis | species | 3 | 1 |
| brazil | minas gerais | biomphalaria occidentalis | species | 4 | 1 |
| brazil | parana | biomphalaria occidentalis | species | 1 | 0 |
| brazil | sao paulo | biomphalaria occidentalis | species | 218 | 0 |