Doctors say they constructed a bespoke gene-editing treatment in less than seven months and used it to treat a baby with a deadly metabolic condition. The rapid-fire attempt to rewrite the child's DNA marks the first time gene editing has been tailored to treat a single individual, according to a report published in the New...

This is today's edition ofThe Download,our weekday newsletter that provides a daily dose of what's going on in the world of technology. This baby boy was treated with the first personalized gene-editing drug Doctors say they constructed a bespoke gene-editing treatment in less than seven months and used it to treat a baby with a...