The present invention relates to the field of native outer membrane vesicles (nOMVs), particularly nOMVs having increased levels of lipoproteins on their surface and use of same in immunogenic compositions.

The present invention relates to a probiotic cell transformed with a construct suitable to overexpress and display on the surface of the probiotic cell a fusion protein comprising at least a portion of a transport protein coupled to at least a portion of one or more antigenic proteins or peptides. Probiotic-derived vesicles displaying this fusion protein as well as methods of inducing an immune response using the probiotic cells or vesicles are also disclosed.

Provided herein are compositions (e.g., probiotic, pharmaceutical, etc.) comprising one or more strains of non-Clostridia class bacteria and methods of use thereof for allergen desensitization. In particular, bacteria of bacterial classes such as Negativicutes, Actinobacteria, and Bacteroidia support allergen desensitization, for example, by promoting production of metabolites that aid in desensitization or performing catabolism of food allergens.

The invention provides compositions comprising bacterial strains for treating and preventing inflammatory and autoimmune diseases.

The application is directed to in vitro-reared Plasmodium sporozoites of human host range wherein sporogony from gametocyte stage to sporozoite stage is external to mosquitoes, and methods of producing the same. Provided herein are in vitro-reared infectious Plasmodium sporozoites (SPZ) of human host range, particularly P. falciparum, P. vivax, P. ovale, P. malariae, and P. knowlesi, wherein sporogony from gametocyte stage to sporozoite stage is external to mosquitoes, and methods of producing the same.

Provided herein are compositions and methods for the induction and/or proliferation of CD8+ T-cells. The disclosure also provides methods of treatment of diseases that can be treated by the induction and/or proliferation of CD8+ T-cells.

Provided herein are compositions and methods for administering bacterial strains to reduce GvHD and improve survival after allogeneic BMT.

Mutated and/or truncated malarial circumsporozoite proteins (CSP) and associated nucleic acids that are more stable and highly expressed in mammalian cells are described. The mutated and/or truncated CSP and associated nucleic acids can be expressed to produce malaria vaccine antigens.

The present disclosure relates generally to compositions, dosage forms, and methods for preventing and treating cancers and infections. An example method entails administering to the patient an effective amount of a composition comprising 1?10.sup.7 to 500?10.sup.7 intact, stabilized and substantially non-viable E. coli cells which have been treated in such a way as to result in about 70% to 99% reduction of lipopolysaccharide (LPS)-associated endotoxin activity when measured by the Limulus Amebocyte Lysate (LAL) assay as compared to untreated, wild-type E. coli cells, and wherein the composition contains 124 to 62000 endotoxin units (EU) of LPS.

The present disclosure provides genetically altered protozoan parasites comprising a mutation in a bradyzoite formation deficient 1 (BFD1) gene, wherein the mutation inhibits differentiation of the parasite into a bradyzoite. The genetically altered protozoan parasites can be utilized in vaccine compositions and in methods of treating apicomplexan parasite infection.