For a decade after its discovery, CRISPR gene editing was stuck on the cusp of transforming medicine. Then, in 2023, scientists started using it on sickle-cell disease, and Victoria Gray, a patient ...

To the research team working to save him, KJ Muldoon was first known only as Patient Eta. But within months, KJ’s name — and megawatt, chubby-cheeked smile — would be splashed across newspapers and ...