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For the first time, doctors have changed the blood type of human lungs — an experimental step toward creating universal organs that could be transplanted into any patient, regardless of blood type
They converted human lungs from Type A blood to Type O — the universal donor — for the first time.
It's a step toward universal organ transplants, so patients don't die because donor organs aren't a blood-type match.
But converted organs eventually reverted to Type A — an issue animal and clinical trials will study.
https://sports.yahoo.com/doctors-changed-blood-type-human-191334950.html
Cassius
Jonathan Chrimes