In some embodiments the present invention provides influenza hemagglutinin (“HA”) polypeptides, proteins, and protein complexes that comprise a stalk domain that is engineered to facilitate maintenance of its native trimeric conformation, even if the head domain of the HA protein is removed or disrupted. In some embodiments, the present invention provides compositions comprising such polypeptides, proteins, and protein complexes, and methods of use of such proteins and compositions, for example as vaccine immunogens.

The present invention relates to vaccines for treating bovine respiratory disease. Such vaccines contain a combination of bovine influenza D virus and Mannheimia haemolytica antigens. An upper respiratory infection with an IDV leads to an increased potential for M. haemolytica pathology in the lungs. The vaccines may contain further antigens from other bovine respiratory pathogens.

Methods of inducing a protective immune response against respiratory syncytial virus (RSV) and against influenza virus, without inducing a severe adverse event in human subjects are described. The methods include administering to the subjects an effective amount of an adenoviral vector encoding a recombinant RSV F polypeptide that is stabilized in a pre-fusion conformation, along with an effective amount of an influenza vaccine.

The present invention relates to a method of eliciting an immune response in a subject by administration of an antigen and an adjuvant, wherein the antigen is associated with a first population of polymersomes, and wherein the adjuvant is associated with a second population of polymersomes, and wherein the two populations of polymersomes are administered to the subject. The present invention also relates to compositions such as vaccines comprising the two polymersome populations of the present invention, methods of eliciting an immune response or methods for treatment, amelioration, prophylaxis or diagnostics of a cancer, autoimmune or infectious disease, comprising providing polymersomes of the present invention.

Compositions and methods, including vaccines and pharmaceutical compositions for inducing or enhancing an immune response are disclosed based on the discovery of useful immunological adjuvant properties in a synthetic, glucopyranosyl lipid adjuvant (GLA) that is provided in substantially homogeneous form. Chemically defined, synthetic GLA offers a consistent vaccine component from lot to lot without the fluctuations in contaminants or activity that compromise natural-product adjuvants. Also provided are vaccines and pharmaceutical compositions that include GLA and one or more of an antigen, a Toll-like receptor (TLR) agonist, a co-adjuvant and a carrier such as a pharmaceutical carrier.

The present invention provides, among other things, a novel and improved method for generating “mosaic” influenza antigenic polypeptides including hemagglutinin (HA) and neuraminidase (NA) polypeptides based on unique combination of epitope patterns that maximize exposure to epitopes present across multiple HA or NA sequences and therefore improved influenza strain coverage. In particular, the present invention provides engineered H1N1 influenza hemagglutinin (HA) polypeptides that are comprised of novel combinations of protective epitopes and antigenic regions from multiple H1N1 viral strains. Such engineered HA polypeptides have improved properties over HA polypeptides developed through conventional approaches that rely on consensus alignments of viral sequences.

This invention relates to chimeric virus-like particles (VLPs) assembled from a polypeptide comprising a papilloma virus (PV) L1 protein or L1/L2 protein and a target peptide comprising a CD8+ T cell epitope derived from a human pathogen. This invention also relates to methods using the chimeric VLPs as antigen-specific redirectors of immune responses.

The present invention relates to the field of (vector) vaccines, and especially to novel EHV's having an inactivation of UL18 and/or UL8. The present invention further concerns related expression cassettes and vectors, which are suitable to express genes of interest, especially antigen encoding sequences. The viral vectors of the present invention are useful for producing an immunogenic composition or vaccine.

The present disclosure provides compositions and methods for manufacturing and obtaining a live attenuated Influenza vaccine (LAIV) composition that can be delivered intranasally to provide protection against influenza virus infection. Said LAIV strains are based on cold adapted, temperature sensitive and attenuated phenotypes of master donor viruses (MDVs) containing the surface glycoprotein genes of the wild type pandemic or seasonal influenza strains. Also, said LAIV strains are further adapted to grow in MDCK cells (Madin Darby canine kidney cells). The use of eggs is avoided in large scale vaccine manufacturing. The purification process is devoid of chromatography steps. The said LAIV composition includes one or more live attenuated influenza vaccine virus and is devoid of polymers and surfactants.

The disclosure concerns methods for executing PBV protocols to preserve biopharmaceuticals using a conventional lyophilizer. Also described are steps for maintaining isolation of a biopharmaceuticals for achieving aseptic drying using the conventional lyophilizer. As a collateral benefit, the invention provides good manufacturing practice (GMP) compliant methods for achieving aseptic drying of biopharmaceutical compositions using a conventional lyophilizer disposed outside of a clean-room area. Finally, methods and formulations str disclosed for preserving biopharmaceuticals suitable for mucosal or transdermal delivery to a patient.