when is blood donation celebrated in the world
World Blood Donor Day Every year on 14 June, countries around the world celebrate World Blood Donor Day (WBDD). The event, established in 2004, serves to raise awareness of the need for safe blood and blood products, and to thank blood donors for their voluntary, life-saving gifts of blood.
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Blood transfusion It was not until 1901, when the Austrian Karl Landsteiner discovered three human blood groups (O, A, and B), that blood transfusion was put onto a scientific basis and became safer.
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