This is a single-marker test detecting IgG antibodies against Trypanosoma cruzi, the parasite responsible for Chagas disease. This test is used for diagnosing both acute and chronic Chagas disease, particularly in patients with a history of exposure in endemic areas. Positive results indicate past or current infection, and the test is crucial for early detection, guiding treatment, and preventing complications such as cardiomyopathy and gastrointestinal manifestations associated with chronic Chagas disease.