Abstract: The instant disclosure relates to pseudovirus nanoparticles (PVNPs) and compositions comprising PVNPs. The disclosed PVNPs may be comprised of fusion proteins that form an icosahedral structure and a nanoparticle shell. The disclosed fusion proteins may comprise a modified norovirus (NoV) S domain protein; a hemagglutinin I (HA1) antigen of the influenza hemagglutinin I (HA1) of influenza vims; and a peptide linker connecting the C-terminus of the NoV S domain to the HA1 antigen. The modified NoV S domain proteins form the interior nanoparticle shell of said PVNP composition and display the 60 HA1 antigens on the surface of the nanoparticle shell. Methods of making and using the PVNPs and compositions containing PVNPs are also disclosed.

Abstract: Disclosed herein are vaccine compositions, in particular, polyvalent icosahedral compositions for antigen presentation. The disclosed compositions may contain an S particle made up of recombinant fusion proteins. The recombinant fusion proteins may include a norovirus (NoV) S domain protein, a linker protein domain operatively connected to the norovirus S domain protein, and an antigen protein domain operatively connected to said linker.

Abstract: Disclosed herein are vaccine compositions, in particular, polyvalent icosahedral compositions for antigen presentation. The disclosed compositions may contain an S particle made up of recombinant fusion proteins. The recombinant fusion proteins may include a norovirus (NoV) S domain protein, a linker protein domain operatively connected to the norovirus S domain protein, and an antigen protein domain operatively connected to said linker.