Aspects of the invention concern a composition or a kit-of-parts comprising i) a virus which is a member of the Reoviridae family and ii) sialic acid and/or a molecule comprising at least one sialic acid moiety, as well therapeutic applications thereof.

Arbovirus carries an altered furin cleavage site that results in enhanced cleavage of a precursor polyprotein, such as, prE2 or prM. Dengue virus particles can have an amino acid alteration within amino acids 80-130 of prM. Zika virus particles can have alterations at amino residues at and/or about the furin cleavage site. The virus can be produced in insect cells. The virus does not form progeny virus in mammal cells.

A fusion protein is provided which is based on a self-assembling gene-regulatory NSP10 protein and a protein or peptide capable of being fused to NSP10 without interfering with the assembly or aggregation of the resulting fusion protein. The disclosure also relates to any nanoparticle formed thereby whether complete or not, and methods for the use of the NSP10 fusion protein are also disclosed, including use as vaccines for any indication in humans or animals, therapeutic methods involving the use of the fusion proteins such as using the protein to targeted an antibody or receptor, such as for treating or diagnosing cancer, biosensors using the fusion protein, or the use of the fusion proteins in cell sorting or any imaging application.

A fusion protein is provided which is based on a self-assembling gene-regulatory NSP10 protein and a protein or peptide capable of being fused to NSP10 without interfering with the assembly or aggregation of the resulting fusion protein. The disclosure also relates to any nanoparticle formed thereby whether complete or not, and methods for the use of the NSP10 fusion protein are also disclosed, including use as vaccines for any indication in humans or animals, therapeutic methods involving the use of the fusion proteins such as using the protein to targeted an antibody or receptor, such as for treating or diagnosing cancer, biosensors using the fusion protein, or the use of the fusion proteins in cell sorting or any imaging application.

A stable immunogenic or vaccine composition comprising a complex or polyhedra comprising same comprising an antigen of a pathogen or other antigen against which a immune response is sought in a human or non-human animal subject and a polyhedrin protein derived from a cytoplasmic polyhedrosis virus (CPV). Delivery of the complex to a subject in substantially polyhedral form induces an immune response thereto. Methods of using same to elicit an immune response.

Attenuated G9P[6] rotavirus is disclosed herein. In some embodiments, pharmaceutical compositions are disclosed that include an attenuated G9P[6] rotavirus, or a component thereof. These compositions can be used to induce an immune response, such as a protective immune response, to a rotavirus. The compositions can be used as vaccines, such as for children (infants), for example in a prime boost strategy.

Attenuated G9P[6] rotavirus is disclosed herein. In some embodiments, pharmaceutical compositions are disclosed that include an attenuated G9P[6] rotavirus, or a component thereof. These compositions can be used to induce an immune response, such as a protective immune response, to a rotavirus. The compositions can be used as vaccines, such as for children (infants), for example in a prime boost strategy.

An isolated polypeptide comprising an amino acid sequence corresponding to the amino acid residues forming a full or partial -helical domain, the hinge domain, the -triple spiral domain and a full or partial globular head domain of an avian reovirus sigma C protein, and lacking the amino acid sequence that is N-terminal to said -helical domain is provided. Furthermore, a vaccine comprising, or a viral vector expressing, at least one of the isolated polypeptides of the present invention is provided.

A broad-spectrum vaccine against avian Reovirus is disclosed, which is effective in reducing the infection of avian Reovirus in an avian target. The vaccine comprises antigenic material derived from avian Reovirus of two genotype groups: 1 and 4, as defined herein. This vaccine is effective against all avian Reoviruses, homologous or heterologous to the vaccine, including recent virulent break-through strains.

An isolated polypeptide comprising an amino acid sequence corresponding to the amino acid residues forming a full or partial -helical domain, the hinge domain, the -triple spiral domain and a full or partial globular head domain of an avian reovirus sigma C protein, and lacking the amino acid sequence that is N-terminal to said -helical domain is provided. Furthermore, a vaccine comprising, or a viral vector expressing, at least one of the isolated polypeptides of the present invention is provided.