Answer:
trypomastigotes
Step-by-step explanation:
- Trypanosoma cruzi is the protozoan that is responsible for causing the Chaga's disease.
- The disease spreads to human through the bite of infected triatomine bugs.
- The infective stage of the protozoan Trypanosoma cruzi is the trypomastigotes that are released in the feces of the infected vector.
- The infective stage then invades the cell's of the host and then differentiates into amastigotes and the cycle continues.