Neglected parasitic infections in the United States: Chagas disease

Area of Science:

• Infectious Diseases
• Parasitology
• Cardiology

Background:

• Chagas disease, caused by the protozoan parasite Trypanosoma cruzi, can result in severe cardiac and gastrointestinal complications.
• Transmission primarily occurs via vector bugs in Latin America, but other routes include congenital, transfusion, transplantation, and foodborne.
• An estimated 300,000 individuals with Chagas disease reside in the U.S., yet the burden of chagasic heart disease remains poorly understood.

Purpose of the Study:

• To highlight the significant, yet underrecognized, burden of Chagas disease and its cardiac manifestations in the United States.
• To underscore the knowledge gaps regarding the frequency of congenital and vector-borne Trypanosoma cruzi transmission within the U.S.
• To emphasize the urgent need for improved diagnostics, treatments, and preventative strategies for Chagas disease.

Main Methods:

• This study is a review and synthesis of existing knowledge on Chagas disease epidemiology and clinical impact.
• It analyzes transmission routes, including vector-borne and non-vector-borne pathways.
• It assesses the current understanding of the disease's prevalence and associated health burdens in the U.S. context.

Main Results:

• Chagas disease, caused by Trypanosoma cruzi, leads to serious cardiac and gastrointestinal issues.
• While endemic in Latin America, an estimated 300,000 infected individuals live in the U.S.
• Congenital and vector-borne transmission of T. cruzi are known to occur in the U.S., but their exact frequency is unknown.

Conclusions:

• There is a critical need for enhanced diagnostic tools and effective treatments to manage Chagas disease.
• Further research is essential to accurately define transmission risks in the U.S.
• Developing targeted strategies for infection prevention and disease burden reduction is paramount.