Introduction: Blood transfusion is an important potential source of Chagas disease transmission.
Methods: Files from the Araraquara Regional Blood Center were checked regarding the tests results for Chagas' disease between January 2004 and December 2008.
Results: Positive serology was diagnosed in 0.04% of 49,541 blood donations that were performed. Seropositive individuals were aged between 51 and 60 years-old.
Conclusions: The low rate of seropositive donors may reduce the risk of transfusion transmission of Chagas disease. The high occurrence of inconclusive results indicates that the diagnostic methods must be improved.
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