The Biggest Risk: Chagas Disease
The true danger of kissing bugs lies not in their bite, but in the parasite Trypanosoma cruzi, carried in their feces. Infection occurs when contaminated feces enter the body through wounds or mucous membranes — often when someone accidentally rubs their eyes or mouth after being bitten.
Two Phases of Chagas Disease:
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Acute Phase (weeks after infection):
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Often symptom-free, or mild flu-like signs: fever, chills, body aches, rash, swollen lymph nodes, loss of appetite, vomiting, diarrhea.
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Some children may develop Romaña’s sign — swelling around one eye.
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Chronic Phase (lifelong infection):
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Many remain without symptoms.
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However, 20–30% develop severe complications years later, such as heart enlargement, arrhythmias, or digestive system damage (colon or esophagus).
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Early treatment during the acute phase is the only way to prevent these long-term effects.
