The present invention relates to an adenoviral vector or adeno-associated virus vector comprising a nucleotide sequence encoding a single cancer specific CD8+ T cell epitope, wherein the vector is capable of inducing an inflating memory CD8+ T cell response wherein said vector does not comprise a nucleic acid encoding further cancer specific T cell epitopes. It also relates to methods and uses of the vector.

The present invention relates to an adenoviral vector or adeno-associated virus vector comprising a nucleotide sequence encoding a single cancer specific CD8+ T cell epitope, wherein the vector is capable of inducing an inflating memory CD8+ T cell response wherein said vector does not comprise a nucleic acid encoding further cancer specific T cell epitopes. It also relates to methods and uses of the vector.