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The article focuses on the investigation by Anna Petherick about the nature of Chagas' disease in various countries across Latin America. It stresses the poor availability of the data that described the disease's spread and its impact and explores how countries across Latin America varies in managing the disease including Venezuela, Brazil, Mexico and Bolivia. It notes that screening for Trypanosoma cruzi at blood banks has became law in Venezuela in 1998, whereas the vectorial transmission by Triatona infestans was officially eliminated from Brazil in 2006. It also states that prevalence is officially low in Mexico while Bolivia has the biggest threat to fight the disease and Ecuador has greater political momentum behind fighting Chagas' disease.