In viral infections, it has been shown that both KLRG1low and KLRG1high perform equally well as effector cells.28 In terms of memory potential, high KLRG1 expression on all Gra6 TN CD8 T cells in the mLN and brain suggests that this population is destined for terminal short‐lived effector cells.29 The gene discussed is CD8A; the disease is viral infectious disease.