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Prevention of Transfusion-Induced Chagas' Disease by Amphotericin B
F. S. Cruz
F. S. Cruz
Federal University of Rio de Janeiro, Rio de Janeiro, Departments of Medicine and Microbiology, St. Louis University School of Medicine, St. Louis, Missouri 63104, Brazil
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J. J. Marr
J. J. Marr
Federal University of Rio de Janeiro, Rio de Janeiro, Departments of Medicine and Microbiology, St. Louis University School of Medicine, St. Louis, Missouri 63104, Brazil
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R. L. Berens
R. L. Berens
Federal University of Rio de Janeiro, Rio de Janeiro, Departments of Medicine and Microbiology, St. Louis University School of Medicine, St. Louis, Missouri 63104, Brazil
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Amphotericin B, a polyene antibiotic effective against eukaryotic cells, can eliminate the trypomastigote form of Trypanosoma cruzi from blood stored at 4°C. This antitrypanosomal effect can be achieved with a concentration of 3 µg/ml within 48 hours. This concentration of amphotericin B does not produce hemolysis over a period of 3 weeks. Amphotericin B methyl ester and nystatin are not effective. Amphotericin B may be considered as a replacement for crystal violet in blood bank blood to prevent transfusion-induced Chagas' disease.
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