A multivalent immunogenic composition is provided, including one or more recombinant proteins selected from the group consisting of a recombinant attenuated Staphylococcus pseudintermedius Protein A (SEQ ID NO:2), a recombinant attenuated Staphylococcus pseudintermedius Leukotoxin S (SEQ ID NO:4), a recombinant attenuated Staphylococcus pseudintermedius Nucleotidase adenosine synthase protein (AdsA) (SEQ ID NO:6), a recombinant attenuated Staphylococcus pseudintermedius coagulase (SEQ ID NO:8), a recombinant attenuated Staphylococcus pseudintermedius Leukotoxin F (SEQ ID NO: 10), and a recombinant attenuated Staphylococcus pseudintermedius exotoxin 15 (SEQ ID NO: 12). Synthetic genes expressing the attenuated recombinant proteins and optimized for expression in E. coli are provided. Vaccines and therapeutic compositions comprising the one or more recombinant proteins are provided.

Disclosed herein are methods and compositions for treating or preventing bacterial infection. In particular, the methods and compositions are directed towards C. difficile infection. In particular aspects, the compositions are vaccines containing multimeric polypeptides containing portions of multiple toxins from bacteria. The polypeptides induce effective immune responses thus treating or preventing infection.

Disclosed herein are methods and compositions for treating or preventing bacterial infection. In particular, the methods and compositions are directed towards C. difficile infection. In particular aspects, the compositions are vaccines containing multimeric polypeptides containing portions of multiple toxins from bacteria. The polypeptides induce effective immune responses thus treating or preventing infection.

The present disclosure relates to nanoparticle compositions for use as vaccines against Salmonella.

The present disclosure relates to nanoparticle compositions for use as vaccines against Salmonella.

A method is described for producing a pneumococcal capsular polysaccharide protein conjugate in which one or more activated pneumococcal polysaccharides of particular pneumococcal serotypes and carrier protein are separately lyophilized in the form of lyospheres of carrier protein and lyospheres of the one or more polysaccharides. A predetermined amount of carrier protein lyospheres and activated polysaccharide lyospheres are mixed together and the mixture reconstituted in an organic solvent to produce polysaccharide carrier protein conjugates. A plurality of conjugates, each comprising polysaccharides of a particular serotype, may be used to produce multivalent pneumococcal immunogenic compositions having a combination of conjugates for use in vaccines.

The present invention provides immunogenic compositions having one or more polysaccharide-protein conjugates in which one or more polysaccharides from Streptococcus pneumoniae bacterial capsules are conjugated to a carrier protein in an aprotic solvent such as dimethylsulfoxide (DMSO). The present invention also provides methods for providing an enhanced immune response to a pneumococcal polysaccharide protein conjugate vaccine comprising administering to a human subject an immunogenic composition comprising polysaccharide-protein conjugates prepared in DMSO conditions.

The present invention provides immunogenic compositions having one or more polysaccharide-protein conjugates in which one or more polysaccharides from Streptococcus pneumoniae bacterial capsules are conjugated to a carrier protein in an aprotic solvent such as dimethylsulfoxide (DMSO). The present invention also provides methods for providing an enhanced immune response to a pneumococcal polysaccharide protein conjugate vaccine comprising administering to a human subject an immunogenic composition comprising polysaccharide-protein conjugates prepared in DMSO conditions.

The invention is directed to immunogenic compositions, including vaccines, containing multivalent immunogenic composition comprising 25 different serotypes of capsular polysaccharides of S. pneumoniae. Compositions are preferably liquid and thermo stable for periods of time that allow for distribution and use. The invention is also directed to method for the manufacture and methods for the administration of 25 valent immunogenic compositions of S. pneumoniae.

The invention relates to compositions and methods for treating inflammatory diseases and disorders in a subject in need thereof. In certain aspects, the invention relates to immunogenic compositions (e.g., vaccines) to diminish the number or pathogenic effects of one or more bacteria associated with the development or progression of an inflammatory disease or disorder.