To rule out the possibility that circulating memory CD8+ T cells raised in Batf3−/− mice were not functional for anti-tumour immunity, we i.d. infected WT and Batf3−/− mice with rVACV-OVA following OT-I cells transfer, and then transferred purified OT-I Tcm cells to WT recipients (Fig. 8a). Here, CD8A is linked to neoplasm.