is caused by the parasite, Trypanosoma cruzi. When a triatomine bug (commonly known as a "kissing bug") infected with this parasite bites you, usually on your face, it leaves behind infected waste which can be spread into your eyes, nose, or a wound. Chagas disease can also spread through contaminated food, a blood transfusion, a donated organ or from mother to baby during pregnancy. Symptoms can include fever, flu-like symptoms, a rash or swollen eyelid. Early symptoms usually go away but if not treated, the infection can later cause serious intestinal and heart problems. Chagas disease is common in Latin America but not in the United States. Source: Genetic and Rare Diseases Information Center (GARD), supported by ORDR-NCATS and NHGRI.