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Denis transfused the blood from a sheep to a 15-year old boy and later to a labourer, both of whom survived the transfusions. In 1818, British obstetrician James Blundell successfully transfused human blood to a patient who had hemorrhaged during childbirth. In 1901, Karl Landsteiner, an Austrian physician discovered the first human blood groups, which helped transfusion to become a safer practice.
Abstract. The first experiments in blood transfusion took place in the seventeenth century, using blood drawn from animals. After the death of a French patient and the trial of his physician for manslaughter, transfusion was abandoned for a century and a half.he first experiments in blood transfusion took place in the seventeenth century, using blood drawn from animals. After the death of a French patient and the trial of his physician for manslaughter, transfusion was abandoned for a century and a half.