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Chagas disease, caused by the protozoan parasite Trypanosoma cruzi, affects some 8 million people worldwide. More than a third develop severe heart or digestive problems with a heightened risk of death. The process that leads to this clinical condition is not completely understood. An article published in the journal Biomedicines describes a study led by Brazilian researchers showing that mutations occur in the mitochondrial genes of patients with Chagas disease megaesophagus, a disorder in [...]