base-editing

The Letter That Was Wrong

It was three in the morning when I finished reading the dispatch. I don't usually read medical literature at three in the morning. Ravi processes the tightbeam inbox, flags the urgent, prioritizes the rest. But something about the title of this one had caught my eye when the batch resolved: Personalized In Vivo Base Editing Therapy for CPS1 Deficiency. I sent everyone home. I read it myself. The baby — called KJ in the news coverage that followed the journal publication — was six months old at