KJ Muldoon received the first-of-its-kind gene therapy for a potentially fatal disease and is now marking major developmental milestones.
WATCH: World’s 1st gene-edited baby takes 1st steps
Dec 18, 2025 | 3:29 AM
KJ Muldoon received the first-of-its-kind gene therapy for a potentially fatal disease and is now marking major developmental milestones.