A 28-year-old patient returns from a vacation in

Latin America. During his stay in nature, he was often stung by various insects

despite the use of repellents. After returning back, he suffers from high

fever, headache, muscle, and abdominal pain. He has enlarged lymph nodes and

experiences difficulty swallowing. Physical examination reveals nothing unusual

apart from enlarged lymph nodes and a large number of stings on the body. There

are a number of possible causes, so the patient's blood is taken and sent for

laboratory tests. Even a basic blood count suggests what might be going on with

this traveller. One possibility being considered, due to the high eosinophil

count, which is 10% in the differential count, is a parasitic infection.

Finally, Chagas disease is indeed confirmed, which is caused by the parasitic

protozoan