How to know if you have chagas disease<br>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.
Chagas bites do not inflict swelling.
( z1 inflict :polarity - :ARG0 ( z2 bite :ARG1 ( z3 chagas ) ) :ARG1 ( z4 swell ) )