By altering the blood type of lungs, researchers raise the possibility of universal organs for transplants

t was 4 a.m. on a humid night in St. Catharines, Ontario, and Elizabeth Ostrander couldn’t breathe. Chronic obstructive pulmonary disease, complicated by pneumonia, was suffocating her, doctors told her that day in 2016. If she hadn’t gotten to the hospital when she did, she would have died, Ostrander remembers them saying. She was in her early 50s.
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