BSIP, JOSE OTO / SCIENCE PHOTO LIBRARY BSIP, JOSE OTO / SCIENCE PHOTO LIBRARY
Barcoded blood. Each tube contains blood from a different donor, and the barcode is used to identify them throughout their analysis. Donated blood is tested for blood group, as well as being thoroughly examined for pathogens such as bacteria and viruses. If the blood is found to be healthy it can be used in transfusions. Photographed at a blood bank in Bordeaux, France.
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