Published transcriptional profiles of NK cells, ILC1, and influenza-specific Id2-deficient mouse CD8+ T cells showed a striking concordance of Id2-dependent expression with our innateness gradient genes, highlighted by TBX21, ZEB2, IL18RAP, CCR7, TCF7, cytotoxicity, and KLR genes31–33. Here, TBX21 is linked to influenza.