At the time when the consensus definition was established, seven was the highest number of CD45+ cells found in islets from 61 non-diabetic control pancreases examined in the Network for Pancreatic Organ Donors with Diabetes (nPOD) [1, 6], and thus the consensus definition adequately separated non-diabetic controls from individuals with type 1 diabetes. Here, PTPRC is linked to type 1 diabetes mellitus.