A Canadian Scientist knows now how to create blood from skin. Although this could be contreversal because of his use of stem cell. Yet he says that he is confident that his research will stray him away from the use of stem cell. He also says that immune systems do not reject the new cells.
http://www.ctv.ca/CTVNews/Health/20101105/blood-skin-cells-101107/
I think that this could be a break for humanity. In addition, to donating blood, people could donate skin cells to make blood of the same as theirs. I would be alright totally with the process as long as stem cells are taken out of the picture. This needs to be a legal, ethical, and technological advance.
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