Thought it should have been Daddy, but clearly the science is on The Onion’s side:
Blood donations do not follow compatibility principles as organ donations. Organs require close genetic matching, blood transfusions are primarily based on blood type and Rh factor, not genetic relation.
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But add in the entire american population...
Blood donations do not follow compatibility principles as organ donations. Organs require close genetic matching, blood transfusions are primarily based on blood type and Rh factor, not genetic relation.