Type 1 diabetes is the outcome of a progressive and selective destruction o
f insulin-producing cells in the pancreatic islets of Langerhans. The preci
se cause and mechanism(s) that trigger the insulin-producing cell destructi
on are still unclear, although it is well accepted that an autoimmune proce
ss plays a central role in diabetes development among genetically susceptib
le children. Additionally, certain viral infections, especially these cause
d by Coxsackievirus B, have been associated with the onset of type 1 diabet
es. Possible gene therapy-based prevention and intervention strategies are
discussed, based on the most accepted models of type 1 diabetes pathogenesi
s.