The present invention relates to a vaccine comprising Open Reading Frame 2 (ORF2) protein of Swine Hepatitis E virus (HEV) and a pharmaceutically acceptable carrier, for use in the protection of anti-HEV MDA-positive piglets against HEV fecal shedding.

The present invention discloses an immunogenic composition comprising S. pneumoniae capsular saccharide conjugates from serotypes 19A and 19F wherein 19A is conjugated to a first bacterial toxoid and 19F is conjugated to a second bacterial toxoid. Vaccines, methods of making vaccines and uses of the vaccines are also described.

A method generally includes co-administering to a subject a composition that includes an antigen and a cytokine signaling immunomodulator. The method can be for treating a subject for abuse of a drug, treating a subject for toxicity from drug abuse, treating a subject for infection by a pathogen, treating a subject for a non-communicable disease, or for increasing antibody production against the antigen. The antigen can be component of a vaccine. The cytokine-signaling immunomodulator is effective to improve the subject's immune response to the antigen compared to the subject's immune response to the antigen without the cytokine-signaling immunomodulator.

The present application provides peripheral blood mononuclear cells comprising an antigen, methods of manufacturing such PBMCs, and methods of using such PBMCs, such as for modulating an immune response in an individual. In some embodiments, the PBMCs are conditioned by incubating the PBMC in the presence of an adjuvant.

The invention relates to antigenic polypeptides derived from a naturally occurring R. microplus protein, and nucleic acids encoding such polypeptides. The polypeptides elicit an immune response which, in turn, produces detrimental effects in R. microplus feeding on vaccinated cattle. Thus, the present disclosure provides novel vaccines to protect cattle from R. microplus infestation.

The present invention provides a method of enhancing an immune response to a vaccine by administering a vaccine and a population of isolated allogeneic human mesenchymal stem cells. The present invention also provides kits comprising a vaccine in a first container and a population of isolated allogeneic human mesenchymal stem cells in a second container.

Embodiments of a novel platform for delivering a peptide antigen to a subject to induce an immune response to the peptide antigen are provided. For example, nanoparticle polyplexes are provided that comprise a polymer linked to a peptide conjugate by an electrostatic interaction. The conjugate comprises a peptide antigen linked to a peptide tag through an optional linker. An adjuvant may be included in the nanoparticle polyplex, linked to either the polymer or the conjugate, or admixed with the nanoparticles. The nanoparticle polyplex can be administered to a subject to induce an immune response to the peptide antigen.

The present invention provides a method of enhancing an immune response to a vaccine by administering a vaccine and a population of isolated allogeneic human mesenchymal stem cells. The present invention also provides kits comprising a vaccine in a first container and a population of isolated allogeneic human mesenchymal stem cells in a second container.

Methods are provided for promoting, reducing, or desensitizing various immune responses by delivery of sub-immunogenic doses of an allergen, alone or with other agents, or by delivery of antigens and adjuvants to a cutaneous microenvironment of a subject. Microneedle arrays can be used in connection with this delivery.

The invention provides a pro-resolving mediator for use in the reduction of reactogenicity induced by administration of a vaccine or immunogenic composition comprising at least an antigen, and vaccines or immunogenic compositions comprising such a pro-resolving mediator.