Abstract: The disclosure provides, in various embodiments, polypeptides (e.g., antibodies and antigen binding fragments thereof) that specifically bind to S2 domains of betacoronavirus Spike glycoproteins, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Spike glycoproteins. The disclosure also provides, in various embodiments, fusion proteins comprising one or more of polypeptides, polynucleotides encoding polypeptides, vectors and host cells suitable for expressing polypeptides, and methods for treating viral infections (e.g., COVID-19).

Abstract: Provided herein are adjuvantation systems comprising fungal polysaccharides for use in Beta coronavirus (e.g., MERS-CoV, SARS-CoV-1, or SARS-CoV-2) and influenza (influenza A virus and influenza B virus) vaccines and immunogenic compositions comprising the adjuvantation system and a Beta coronavirus or influenza virus antigen.

Abstract: Provided herein are nanoparticles which enhance the immunogenicity of antigens for use in Beta coronavirus (e.g., MERS-CoV, SARS-CoV-1, or SARS-CoV-2) vaccines, as well as immunogenic compositions comprising the antigen nanoparticles and additional adjuvants for further enhancing immunogenicity.

Abstract: The disclosure provides, in various embodiments, polypeptides (e.g., antibodies and antigen binding fragments thereof) that specifically bind to S2 domains of betacoronavirus Spike glycoproteins, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Spike glycoproteins. The disclosure also provides, in various embodiments, fusion proteins comprising one or more of polypeptides, polynucleotides encoding polypeptides, vectors and host cells suitable for expressing polypeptides, and methods for treating viral infections (e.g., COVID-19).

Abstract: The disclosure provides, in various embodiments, polypeptides (e.g., antibodies and antigen binding fragments thereof) that specifically bind to S2 domains of betacoronavirus Spike glycoproteins, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Spike glycoproteins. The disclosure also provides, in various embodiments, fusion proteins comprising one or more of polypeptides, polynucleotides encoding polypeptides, vectors and host cells suitable for expressing polypeptides, and methods for treating viral infections (e.g., COVID-19).

Abstract: Provided herein are imidazopyrimidine compounds, such as compounds of Formula (I), for use in enhancing human immune response and/or as adjuvants in vaccines.

Abstract: Provided herein are thiazole amide compounds (e.g., Formula (I)) for use in enhancing human immune response and/or as adjuvants in vaccines. The compounds described herein are used as enhancers of an immune response (e.g., innate and/or adaptive immune response), and are useful in treating and/or preventing a disease, as adjuvants in a vaccine for the disease, (e.g., proliferative disease, inflammatory disease, autoimmune disease, infectious disease, or chronic disease). Also provided in the present disclosure are compositions (e.g., pharmaceutical composition), kits, methods, and uses including or using compounds described herein.

Abstract: Provided herein are adjuvantation systems for use in Beta coronavirus (e.g., MERS-CoV, SARS-CoV-1, or SARS-CoV-2) vaccines and immunogenic compositions comprising the adjuvantation system and a Beta coronavirus antigen.

Abstract: The present disclosure provides compounds of Formula (I), and pharmaceutically acceptable salts, solvates, hydrates, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, prodrugs, and compositions thereof. The compounds described herein are used as enhancers and/or modifiers of an immune response (e.g., innate and/or adaptive immune response), and are useful in treating and/or preventing a disease, as adjuvants in a vaccine for the disease, (e.g., proliferative disease, inflammatory disease, autoimmune disease, infectious disease, or chronic disease), or as stand alone anti-infective or immune response modifying agents. Also provided in the present disclosure are pharmaceutical compositions, kits, methods, and uses including or using a compound described herein.

Abstract: Provided herein are Toll-like receptor 2 (TLR2) agonists for use in enhancing human immune response and/or as adjuvants in vaccines. The TLR2 agonists include thiophenes, imidazoles, or phenyl-containing compounds, which may be compounds of Formulae (I), (II), (III), and pharmaceutically acceptable salts, solvates, hydrates, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, prodrugs, and compositions thereof. The compounds described herein are used as enhancers of an immune response (e.g., innate and/or adaptive immune response), and are useful in treating and/or preventing a disease, as adjuvants in a vaccine for the disease, (e.g., proliferative disease, inflammatory disease, autoimmune disease, infectious disease, or chronic disease). Also provided in the present disclosure are pharmaceutical compositions, kits, methods, and uses including or using a compound described herein.

Abstract: Provided herein are Stimulator of Interferon Genes (STING) ligand for use in enhancing immune response and/or as adjuvants in vaccines. In some embodiments, STING ligand is used alone or in combination with Alum in an adjuventation system for early life immunization.

Abstract: The present disclosure provides compounds of Formula (I), and pharmaceutically acceptable salts, solvates, hydrates, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, prodrugs, and compositions thereof. The compounds described herein are used as enhancers and/or modifiers of an immune response (e.g., innate and/or adaptive immune response), and are useful in treating and/or preventing a disease, as adjuvants in a vaccine for the disease, (e.g., proliferative disease, inflammatory disease, autoimmune disease, infectious disease, or chronic disease), or as stand alone anti-infective or immune response modifying agents. Also provided in the present disclosure are pharmaceutical compositions, kits, methods, and uses including or using a compound described herein.

Abstract: Provided herein are Toll-like receptor 2 (TLR2) agonists for use in enhancing human immune response and/or as adjuvants in vaccines. The TLR2 agonists include thiophenes, imidazoles, or phenyl-containing compounds, which may be compounds of Formulae (I), (II), (III), and pharmaceutically acceptable salts, solvates, hydrates, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, prodrugs, and compositions thereof. The compounds described herein are used as enhancers of an immune response (e.g., innate and/or adaptive immune response), and are useful in treating and/or preventing a disease, as adjuvants in a vaccine for the disease, (e.g., proliferative disease, inflammatory disease, autoimmune disease, infectious disease, or chronic disease). Also provided in the present disclosure are pharmaceutical compositions, kits, methods, and uses including or using a compound described herein.

Abstract: Provided herein are Stimulator of Interferon Genes (STING) ligand for use in enhancing immune response and/or as adjuvants in vaccines. In some embodiments, STING ligand is used alone or in combination with Alum in an adjuventation system for early life immunization.

Abstract: Provided herein are Toll-like receptor 2 (TLR2) agonists for use in enhancing human immune response and/or as adjuvants in vaccines. The TLR2 agonists include thiophenes, imidazoles, or phenyl-containing compounds, which may be compounds of Formulae (I), (II), (III), and pharmaceutically acceptable salts, solvates, hydrates, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, prodrugs, and compositions thereof. The compounds described herein are used as enhancers of an immune response (e.g., innate and/or adaptive immune response), and are useful in treating and/or preventing a disease, as adjuvants in a vaccine for the disease, (e.g., proliferative disease, inflammatory disease, autoimmune disease, infectious disease, or chronic disease). Also provided in the present disclosure are pharmaceutical compositions, kits, methods, and uses including or using a compound described herein.

Abstract: Provided herein are imidazopyrimidine compounds for use in enhancing human immune response and/or as adjuvants in vaccines.