system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Chagas disease is caused by
assistant
The correct answer is  Trypanosoma cruzi causes Chagas diseaseThey are introduced when infected kissing bug feces are rubbed into conjunctiva, bite site or a break in the skin.Unilateral swelling of the eyelids (Romana&;s sign) is characteristic.Interstitial myocarditis is the most common serious condition.Invasion or toxic destruction of nerve plexuses in the alimentary tract wall leads to megaesophagus and megacolon (Brazilian Chagas disease)Jawetz 27e pg: 715