Kissing bugs that carry the parasite for Chagas disease, a potentially serious tropical condition, have established a base in Florida, researchers say.

Chagas disease, which is rare in the United States, can cause a brief illness or remain latent for years before causing symptoms. If untreated, it can become a chronic condition that damages the heart, brain, and other organs.

Scientists from the University of Florida (UF) and Texas A&M University collected more than 300 kissing bugs, or triatomines, from 23 Florida counties—one third of them from people’s homes—from 2013 to 2023. The team analyzed the bugs’ stomach contents to determine the source of their last meal and whether it contained the Trypanosoma cruzi parasite implicated in Chagas disease.

Their findings were published this week in PLOS Neglected Tropical Diseases.