Immune responses frequently fail to prevent the growth of tumors. (B)Anglogenic dormancy (C)Immune dorm Reg The immune system can be activated to effectively kill tumor cells and eradicate tumors. Tumor Antigen Tumor Immunity Tumor ImmunotheImmune responses frequently fail to prevent the growth of tumors. Tumor Immunity Tumor Antigen Tumor Immunotherapy The immune system can be activated to effectively kill tumor cells and eradicate tumors