The patient, a 15-year-old girl, had come to London's Great Ormond Street Hospital for a double lung transplant. It was the summer of 2017, and her lungs were struggling to reach even a third of their normal function. She had cystic fibrosis, a genetic disease that clogs lungs with mucus and plagues patients with persistent infections. For eight years, she had been taking antibiotics to control two stubborn bacterial strains.
* This article was originally published here
