ERBB2 and neoplasm: Other examples include HER2-derived peptide vaccines; an allogeneic GM-CSF1-secreting vaccine; a HER2 peptide-pulsed, dendritic cell vaccine; and PANVAC, which incorporates vaccinia and fowlpox viruses genetically engineered to express the tumour-associated antigens carcinoembryonic antigen and MUC1.