Peptide-based synthetic vaccines (epitope vaccines) are subunit vaccines made from peptides. The peptides mimic the epitopes of the antigen that triggers direct or potent immune responses.[1] Peptide vaccines can not only induce protection against infectious pathogens and non-infectious diseases but also be utilized as therapeutic cancer vaccines, where peptides from tumor-associated antigens are used to induce an effective anti-tumor T-cell response.[2]