We continue our investigation into the challenges of diagnosing Type 1 in infants. Claire Levy talks with Professor Parth Narendran, who is part of a national effort to explore the feasibility of early surveillance programmes for pre-type 1 diabetes and which therapies are best tested in the prevention arena. Claire also speaks with John Story, the father of Lyla Story - who tragically died in early May 2025 from DKA.