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Transfusion‐associated Chagas disease (American trypanosomiasis) in Mexico: implications for transfusion medicine in the United States

BACKGROUND:  Trypanosoma cruzi, the protozoan cause of Chagas disease, causes life‐long infection and is easily transmitted by blood transfusion. Our goals were to determine the prevalence of Chagas disease among donors in five Mexican blood banks, to look for evidence of transmission of T. cruzi by transfusion, and to evaluate two serologic assays for Chagas disease.