An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. Also provided is recombinant PCV2 ORF2 protein, and immunogenic compositions comprising PCV2 ORF2 protein. Moreover, multivalent combination vaccines are provided which include an immunological agent effective for reducing the incidence of or lessening the severity of PCV2 infection, preferably PCV2 ORF2 protein, or an immunogenic composition comprising PCV2 ORF2 protein, and at least one immunogenic active component of another disease-causing organism in swine.

The present invention relates to immortalized porcine alveolar macrophages (PAMs), to cell cultures comprising such PAMs, to methods for the immortalization of PAMs, to methods of replicating PRRS virus on immortalised PAMs and to methods for the preparation of vaccines comprising PRRSV.

The present invention provides exosomes isolated from an animal, wherein the animal (a) has overcome a disease caused by a pathogen, and (b) it is free from the pathogen that causes the diseases. The invention also provides process for obtaining these exosomes and the use thereof in therapy.

The present invention relates to a porcine parvovirus and porcine reproductive and respiratory syndrome virus vaccine for protecting a subject, preferably swine, against diseases associated with porcine parvovirus and porcine reproductive and respiratory syndrome virus. The present invention further relates to methods of producing immunogenic compositions as well as such immunogenic compositions exhibiting reduced virucidal activity.

The present invention encompasses recombinant porcine reproductive and respiratory syndrome virus (PRRSV) vaccines or compositions. In particular, the invention encompasses recombinant adenovirus vectors encoding and expressing PRRSV gp2, gp3, gp4, gp5a, gp5 and/or E antigens, proteins, epitopes or immunogens. Such vaccines or compositions can be used to protect animals from PRRSV.

The present invention relates to a porcine parvovirus (PPV) viral protein 2 (VP2) having at amino acid position 228 a glutamic acid residue or a glutamate residue, and/or at amino acid position 414 a serine residue, and/or at amino acid position 419 a glutamine residue, and/or at amino acid position 436 a threonine residue. Further, the present invention relates to immunogenic compositions comprising said PPV viral protein 2 (VP2). Furthermore, the present invention relates to methods for immunizing a subject comprising administering to such subject the immunogenic composition of the present invention. Moreover, the present invention relates to methods of treating or preventing clinical signs caused by PPV infection in a subject of need, the method comprising administering to the subject a therapeutically effective amount of an immunogenic composition according to the present invention.

Herein a Bacillus exosporium antigen delivery (BEAD) system that provides a means to introduce recombinant proteins or small molecules into the exosporium of members of the B. cereus family of bacteria, i.e. B. anthracis, B. cereus, and B. thuringiensis, is disclosed. The system results in the surface display of recombinant proteins or small molecules such that they can stimulate an immune response. In addition, methods of making and using the system are described.

A fusion polypeptide is disclosed, which includes: (a) a mucosa targeting polypeptide; (b) a translocating peptide for translocation; and (c) a antigenic epitope. In addition, a method for enhancing a stimulation of an immune response using the aforementioned fusion polypeptide is also disclosed.

The present invention describes an efficient commercial scale production method for the preparation of PRRS virus.

Pharmaceutical or veterinary compositions, vaccine systems, methods, and kits for treating or protecting a subject from a condition using peptide-based adjuvants are provided. The peptide adjuvants comprise a peptide having a hydrophobic region, a turning region, and a hydrophilic region. The turning region comprises amino acid residues GSII (SEQ ID NO: 10). The peptide adjuvants can be used to immunopotentiate active agents by improving the immune response to the active agent.