Gene Therapy Virus Linked to Boy's Brain Tumor
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- Adam underwent a stem‑cell transplant that failed at 13 months old.
- Doctors warned that a second transplant carried a 10‑15% risk of death and offered an untested gene‑therapy instead.
- Parents Mary Beth and Dave Brennan chose the experimental gene‑therapy.
- Adam later reached developmental milestones, including sign language and reading, after the gene‑therapy.
- Routine scan last year detected a golf‑ball‑sized tumor in Adam’s brain.
Why it matters: Families of children with rare genetic disorders gain cautionary data, while researchers, regulators, and biotech firms face heightened scrutiny of viral‑vector gene therapies and need to adjust safety protocols.
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