Evolution of infection in mice inoculated by the oral route with different developmental forms of Trypanosoma cruzi I and II

- The development of Trypanosoma cruzi infection in mice was induced by the oral route.
- It varied significantly according to the genetics and number of parasites inoculated.
- The inoculum volume and developmental stages also influenced the course of infection.
- Mice inoculated with metacyclic trypomastigotes showed more histopathological changes.