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Review
. 2014 Feb;41(1):10-7.
doi: 10.1159/000358017. Epub 2013 Dec 27.

Emerging Pathogens - How Safe is Blood?

Michael Schmidt  1 , Wolf-Jochen Geilenkeuser  1 , Walid Sireis  2 , Erhard Seifried  2 , Kai Hourfar  2
Affiliations
Review

Emerging Pathogens - How Safe is Blood?

Michael Schmidt et al. Transfus Med Hemother. 2014 Feb.

Abstract

During the last few decades, blood safety efforts were mainly focused on preventing viral infections. However, humanity's increased mobility and improved migration pathways necessitate a global perspective regarding other transfusion-transmitted pathogens. This review focuses on the general infection risk of blood components for malaria, dengue virus, Trypanosoma cruzi (Chagas disease) and Babesia spp. Approximately 250 million people become infected by Plasmodium spp. per year. Dengue virus affects more than 50 million people annually in more than 100 countries; clinically, it can cause serious diseases, such as dengue haemorrhagic fever and dengue shock syndrome. Chagas disease, which is caused by Trypanosoma cruzi, mainly occurs in South America and infects approximately 10 million people annually. Babesia spp. is a parasitic infection that infects red blood cells; although many infections are asymptomatic, severe clinical disease has been reported, especially in the elderly. Screening assays are available for all considered pathogens but make screening strategies more complex and more expensive. A general pathogen inactivation for all blood components (whole blood) promises to be a long-term, sustainable solution for both known and unknown pathogens. Transfusion medicine therefore eagerly awaits such a system.

Keywords: Babesia; Blood safety; Chagas disease; Dengue virus; Malaria.

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