The present invention relates to methods of inducing a T-cell response against a EGFRvIII in a subject. These method comprise administering to a subject a composition which expresses at least one immunogenic polypeptide, the amino acid sequence of which comprise a plurality of EGFRvIII polypeptide sequences, the sequence of which each comprise EEKKGNYV (SEQ ID NO: 3), and/or administering the polypeptide itself.

The present invention provides live-attenuated bacterium of the genus Salmonella comprising a recombinant plasmid encoding a fusion protein, wherein the fusion protein comprises a coronavirus antigen and an adjuvant peptide.

Disclosed herein are recombinant nucleic acids encoding tumor antigens fused to immunogenic polypeptides and recombinant Listeria strains comprising the same, methods of preparing same, and methods of inducing an immune response, and treating, inhibiting, or suppressing cancer or tumors comprising administering same.

A immunogenic composition is provided for use in methods for treating or preventing the development of a cancer, comprising a nucleic acid sequence encoding a cancer antigen and a nucleic acid sequence encoding fibroblast activation protein (FAP). In one embodiment, the composition comprises a vector comprising a first expression cassette comprising a nucleic acid sequence encoding an antigen of a, operatively linked to an expression control sequence that directs the expression of the antigen in a mammalian host cell. The composition further contains a vector comprising a second expression cassette comprising a nucleic acid sequence encoding fibroblast activation protein (FAP) operatively linked to an expression control sequence directing the expression of FAP in a mammalian host cell. In one embodiment, the cancer is one in which tumor progression depends on the fibroblasts expressing fibroblast activation protein (FAP).

The present invention relates to a strain of Salmonella enteritidis 3934vac, which has been deleted the waaL gene to obtain a rough phenotype (3934vac DwaaL), the obtaining procedure and the oligos used with the objective of reducing toxicity and maintaining immunogenicity for its application as a vaccine. Another aspect of the present invention relates to a strain of Salmonella enteritidis 3934vac DwaaL, i.e. rough type, which has been modified to express the gene of the avian adenovirus type I fiber, in addition to the procedure for obtaining a Salmonella enteritidis 3034 vac DwaaL strain expressing an AvA-I fiber gene. The invention also comprises the development of a new, live, recombinant, effective and innocuous avian vaccine against the AvA-I virus developed via an insertion and integration process of AvA-I fiber genes in the chromosome of an attenuated and non-pathogenic strain of the bacterium Salmonella enteritidis.

The invention relates to a recombinant Mycobacterium cell for use as an immunotherapeutic agent in the treatment of cancer, particularly in the treatment of solid tumors. More particularly, the invention relates to the immunotherapy of bladder carcinoma.

A mutated Bordetella strain comprising at least a mutated ptx gene, a deleted or mutated dnt gene and a heterologous ampG gene is provided. The attenuated mutated Bordetella strain can be used in an immunogenic composition or a vaccine for the treatment or prevention of a Bordetella infection. Use of the attenuated Bordetella strain for the manufacture of a vaccine or immunogenic composition, as well as methods for protecting mammals against infection by Bordetella are also provided.

A live attenuated Shigella vaccine, which is based on a rough Shigella strain lacking LPS O-antigen which is non-invasive through a mutation of the invasion plasmid, specifically for use in the immunoprophylaxis of a subject to prevent infectious diseases, preferably enteral disease, and a Shigella strain, which is a S. flexneri 2a strain with a deletion of the rfb F, ipa B and/or ipa C genes, as well as a recombinant plasmid vector based on a mutated Shigella invasion plasmid comprising a nucleotide sequence encoding at least one heterologous antigen, wherein the plasmid is mutated in at least one of the ipa B and/or ipa C genes.

The present invention provides a recombinant bacterium and methods of using the recombinant bacterium to induce an immune response.

An improved stabilization buffer for use in the lyophilization of Neospora and other protozoans is disclosed. Also disclosed is an improved lyophilization method, which includes controlling ice nucleation during the freezing step.