Errbody get ready for type O.
Blood groups 'can be converted'
Supplies of blood are always stretchedScientists have developed a way of converting one blood group into another.
The technique potentially enables blood from groups A, B and AB to be converted into group O negative, which can be safely transplanted into any patient.
The method, which makes use of newly discovered enzymes, may help relieve shortages of blood for transfusions.
http://news.bbc.co.uk/2/hi/health/6517137.stm
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Pretty bamf. And neat.