AIV inactivated vaccine(2) Antibody Response(2) Bursal hexapeptide(1) diphtheria toxin(1) antibody production(1) functionalbiological processes..(1) SARS CoV-2(1) human prion protein(1) immunization model(1) Bursal nonapeptide (BP9)(1) Bursal pentapeptide(1) HIV1 gp120(1) hybridoma(1) enriched pathways(1) T cell(1) hemagglutinin(1) secondary structure of proteins.(1) immune response(1) signal pathways.(1) DT40 cells(1) costimulatory factor..(1) Synthetic vaccine(1) Bursal tetrapeptide(1)