MYC and lymphoma: Similarly, 10/10 animals injected with CB “Donor 2” cells containing both ΔEBNA2 EBV and the human Myc T58A mutant protein developed tumors by day 50, whereas 0/10 mice injected with “Donor 2” CB cells infected with ΔEBNA2 EBV alone developed lymphomas by day 120 (Fig 2C).