A new genetic risk score can predict who’s at high risk of developing type 1 diabetes, and it could be used in large-scale health studies to identify adults who could benefit from new treatments. The score uses genetic information to predict risk and feeds into an online clinical calculator that’s already available to clinicians. This is a big deal because new drugs like teplizumab can delay the onset of type 1 diabetes by up to three years, but they only work if given before symptoms develop. The genetic risk score can help identify who should get autoantibody testing to see if they’re eligible for these new treatments.