Here are some informative videos about development and prevention of type 1 diabetes:

Prof. Dr. Martin M. Hrabĕ de Angelis “What is special about the new study center?”
Dr. Melanie Guendert “Who is the team behind GPPAD?”
Prof. Carolin Daniel talks about her research group ”Immune tolerance in type 1 diabetes”
For a World Without Type 1 Diabetes: The New Study Centre at Helmholtz Zentrum München