Mei's death from experimental gene therapy prompts ethics questions in China
Six-year-old Mei with a Rett-like Snijders Blok-Campeau syndrome died in March 2025 after participating in an experimental gene-therapy trial in China; Science and Retraction Watch report the trial violated ethical and safety rules, with Mei's parents funding a base-editing approach delivered by a viral vector, raising urgent questions about oversight and safety in biotech research in China.