This is a test of commonsense. Complete the next sentence:

How to know if you have chagas disease
Look for swelling at the bite site.
The swelling usually appears one week after the bite. The bite site becomes a boil-like, hard and violet colored lesion that may persist for several weeks.
The swelling is due to multiplication of the parasite locally in the tissue that leads to inflammation. It is known as " chagoma ".