The high dose of 20 μg per mouse of the composite influenza peptide vaccine showed significantly higher immune responses to peptide components of the vaccine HA + NA (Flu Pep11) and M1/M2/M2e + T-cell epitope (Flu Pep5906) compared to the 1 μg low dose, given either intramuscularly or intradermally. The gene discussed is XK; the disease is influenza.