Breaking news: Baby is healed with world’s first personalized gene-editing

The boy, now 9 months old, had a rare genetic condition.

View in browser May 15, 2025, 1:51 p.m. ET BREAKING NEWS Muldoon Family Baby Is Healed With World's First Personalized Gene-Editing Treatment The technique used on an infant with a rare condition has the potential to help people with thousands of other uncommon genetic diseases. Read more More top stories The Supreme Court seemed troubled by President Trump's order on birthright citizenship. → The U.S. charged a Harvard scientist who is in ICE custody with smuggling. → Overdose deaths plummeted in 2024. Will President Trump's cuts slow the momentum? → If you received this newsletter from someone else, subscribe here. Need help? Review our newsletter help page or contact us for assistance. You received this email because you signed up for Breaking News from The New York Times. To stop receiving Breaking News, unsubscribe. To opt out of other promotional emails from The Times, including those regarding The Athletic, manage your email settings. Subscribe to The TimesGet The New York Times app Connect with us on: Change Your EmailPrivacy PolicyContact UsCalifornia Notices The New York Times Company. 620 Eighth Avenue New York, NY 10018