An infectious disease caused by a parasite found in the faeces of the triatomine bug.

Chagas disease is common in places where the triatomine bug transmits the parasite Trypanosoma cruzi. These places include South America, Central America and Mexico.

The disease can be mild, causing swelling and fever, or it can be long lasting. Left untreated, it can cause congestive heart failure.Treatment for Chagas disease focuses on taking medication that kills the parasite and on managing symptoms.