Overview

• In a CDC journal review, triatomine ‘kissing bugs’ carrying Trypanosoma cruzi were documented across roughly 32 states, largely in the southern U.S.
• Locally acquired human infections have been confirmed in at least eight states, with Texas reporting the most cases to date.
• Exposure in animals points to established circulation, including infected dogs in 23 states and wildlife infections reported in at least 17 states.
• Chagas is not a reportable illness in most states, leaving the true U.S. burden uncertain as researchers push for formal recognition and coordinated monitoring.
• The parasite is typically transmitted when infected bug feces enter the body at the bite site, and early treatment with benznidazole or nifurtimox is most effective.