How does chagas disease spread?

Chaga's dis. Chagas disease is caused by trypanosoma cruzi, a parasite related to the african trypanosome that causes sleeping sickness. It is spread by reduvid bugs and is one of the major health problems in south america. Due to immigration, the disease also affects people in the United States.
By insects. The causative agent of chagas disease (t. Cruzi) is transmitted by bloodsucking insects or kissing bugs.