Breakthrough for baby with rare illness in world-first gene therapy trial

Tomas was diagnosed with ornithine transcarbamylase (OTC) deficiency when he was a few weeks old - (Handout/PA Wire)

A baby boy with a rare genetic disorder is making “incredible” progress after he became the first infant to receive a groundbreaking new gene therapy.

Fourteen-month-old Tomas was diagnosed with ornithine transcarbamylase (OTC) deficiency when he was a few weeks old - becoming just one of 15 each year diagnosed with the rare genetic disease.