First ever blood transfusion grown from man's own stem cells.

Professor Luc Douay (Creteil, France).

A man's own blood-making (hematopoietic) stem cells were used to make billions of new red blood cells in the lab.   He got back a blood transfusion of these new ones and they survived just as well as the originals. The half-life of a red blood cell is 28 days and these cultured ones matched.  This will lower the risk of infection from strangers' blood and may begin to resolve the world-wide blood shortage.