CDC: Chagas Disease Established, Not Just Imported

Chagas disease, a serious illness, is now considered established and endemic within the United States, a significant shift from its previous classification as solely an imported condition. Researchers identified 11 types of "kissing bugs" capable of spreading the parasite across 32 states, with a higher prevalence noted in southern and southwestern regions. Texas alone recorded 50 locally acquired cases between 2013 and 2023.

An estimated 300,000 individuals in the U.S. are living with Chagas disease, many unaware of their infection. Early signs are often mild or absent, leading to delayed diagnosis. However, without treatment, the parasite can remain in the body, potentially causing severe cardiac or digestive complications 10 to 30 years after initial infection. Approximately 20% to 30% of chronically infected individuals develop serious conditions such as cardiomyopathy or an enlarged esophagus.

The Centers for Disease Control and Prevention (CDC) has updated its guidance for healthcare providers, recommending treatments like benznidazole and nifurtimox, which are most effective in acute infections and in children. Preventive measures such as sealing home gaps and removing outdoor debris are also advised. The agency aims to improve surveillance and public health responses by acknowledging the disease's endemic status.