Final answer:
Type 1 diabetes is a chronic autoimmune disorder that typically develops in childhood or adolescence and accounts for less than five percent of all diabetes cases. Insulin injections are required for treatment.
Step-by-step explanation:
Type 1 diabetes is a chronic autoimmune disorder characterized by the immune system attacking the insulin-secreting beta cells of the pancreas. This type of diabetes usually develops in childhood or adolescence. It accounts for less than five percent of all diabetes cases and requires insulin injections for treatment.