Understanding Chagas Disease: A Silent Global Health Threat

Chagas disease, also known as American trypanosomiasis, is a neglected tropical disease caused by the parasite Trypanosoma cruzi. It affects an estimated 6–7 million people worldwide, with the majority of cases in Latin America. However, due to global migration, Chagas disease is now a growing public health concern in the United States, where over 300,000 people are believed to be living with the infection—many without knowing it.

Often called a “silent disease,” Chagas can remain asymptomatic for years or even decades. During this time, the parasite slowly damages the heart and digestive system. Without diagnosis and treatment, approximately 20–30% of infected individuals will develop serious complications, including Chagas cardiomyopathy, a leading cause of heart failure in endemic regions.

Raising awareness is critical. Many individuals at risk—including immigrants from endemic countries, pregnant women, and those exposed to rural housing conditions—are unaware of the disease. By increasing education and access to screening, we can reduce late-stage diagnoses and save lives.