The present invention relates to methods and compositions for the stimulation of immune responses. Specifically, the present invention provides methods of inducing an immune response to human immunodeficiency virus (HIV) in a subject (e.g., a human subject) and compositions useful in such methods (e.g., a nanoemulsion comprising HIV or antigenic portion thereof).

The present invention relates to pharmaceutical compositions comprising a mixture of a specific HIV antigen and a non-pathogenic living bacterium. Said specific HIV antigen comprises one or more epitopes from Gag and/or Pol proteins and is preferably under a particulate form. Said bacterium is preferably Lactobacillus plantarum. These compositions are useful for preventing and/or treating an HIV disease in humans.

The adjuvanted conjugate opioid vaccine described herein is a conjugate of a protein carrier and at least one opioid backbone component or hapten conjugated thereto, admixed with at least one adjuvant. Anti-opioid effects are demonstrated after administration of a vaccine made up of the CRM197 protein carrier linked to a FEN backbone, combined with adjuvants such as dmLT or LTA1.

A method of administering a pharmaceutical composition includes the step of administering a sterile unit of vaccine to the ocular mucosa. The vaccine can be made of DNA segments, RNA segments, messenger RNA live virus, or attenuated virus. The unit dosage can be about 20 to 70 microliters. The vaccine is suspended in a solution which closely matches the ocular tear film in terms of pH, osmolality and can be non-preserved and viscous. The pharmaceutical composition is delivered to the surface of the eye in sequential doses over a predetermined period of time to provide a total dosage for providing the vaccine to the patient.

Embodiments of the invention include immunogenic compositions that comprise an attenuated recombinant Francisella tularensis subspecies holarctica Live Vaccine Strain (LVS) having a deletion in a polynucleotide encoding CapB (LVS ΔcapB), wherein the LVS ΔcapB expresses one or more antigens present on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Embodiments of the invention also include methods of immunizing a susceptible host against a pathogen comprising administering to the host a vaccine that comprises an attenuated recombinant Live Vaccine Strain lacking a polynucleotide encoding CapB (LVS ΔcapB), wherein the LVS ΔcapB expresses one or more antigens expressed by a severe acute respiratory syndrome coronavirus 2 (SAR8-CoV-2) polypeptide.

Disclosed herein are embodiments of an immunogenic composition for porcine epidemic diarrhea virus, and a method for making the immunogenic composition. Also disclosed is a method for administrating the immunogenic composition to a subject in need thereof. The immunogenic composition comprises PEDV proteins and/or antigens from one or more strains of PEDV, and may additionally comprise proteins and/or antigens from one or more additional porcine pathogens, such as PRRSV. Additionally disclosed in a combination comprising a PEDV immunogenic composition as disclosed herein, and an immunogenic composition or other therapeutic composition directed toward an additional porcine pathogen.

Use of a superantigen in mucosal allergen specific immune therapy (ASIT) in a human being to enhance the effect thereof. In order to enhance the effect of the mucosal ASIT, the superantigen is mucosally administered before, or with, the allergen to the human being.

The invention provides an immunogenic composition comprising a combination of (i) bacterial Ig-like domain protein fragment (orf405B) having the amino acid sequence set forth in SEQ ID NO:2 or a protein having at least 80% similarity thereto, and (ii) putative Lipoprotein (orf3526) having the amino acid sequence set forth in SEQ ID NO:8 or a protein having at least 80% similarity thereto.

The present invention provides the isolation and characterization of a new infectious bronchitis virus (IBV) variant, the IBV GA-13 variant, and the production of attenuated isolates thereof, including, but not limited to, the attenuated IBV GA13 isolate 103505 Kd E86, and the use of such IBV isolates in materials and methods for combating infectious bronchitis virus in poultry and reducing the economic impact that infectious bronchitis disease has on poultry production.

This disclosure relates to immunogenic compositions and methods of enhancing an immune response to an antigen. In certain embodiments, the disclosure relates to virus-like carries comprising a TLR5 agonist on the exterior without an antigen.