The present disclosure provides immunogenic compositions and methods of inducing an immune response and/or preventing, treating or ameliorating an infection, disease or condition associated with an erythrocytic organism in a first mammal, wherein the erythrocytes are from a second mammal of a species different from the first mammal.

The present disclosure provides immunogenic compositions and methods of inducing an immune response and/or preventing, treating or ameliorating an infection, disease or condition associated with an erythrocytic organism in a first mammal, wherein the erythrocytes are from a second mammal of a species different from the first mammal.

Anti-parasitic compounds and uses thereof. Compounds comprising a C-terminal peptide adjuvant conjugated to an N-terminal peptide antigen via a protease-cleavable linker, said peptide adjuvant comprising a peptide analog of C5a, wherein said peptide antigen comprises an antigenic epitope of a parasitic organism, such as T. gondii. Methods of therapeutic or prophylactic treatment of a parasitic infections.

Anti-parasitic compounds and uses thereof. Compounds comprising a C-terminal peptide adjuvant conjugated to an N-terminal peptide antigen via a protease-cleavable linker, said peptide adjuvant comprising a peptide analog of C5a, wherein said peptide antigen comprises an antigenic epitope of a parasitic organism, such as T. gondii. Methods of therapeutic or prophylactic treatment of a parasitic infections.

Mixed allergen compositions of two or more different allergens are provided. In some instances, the mixed allergen compositions include: a nut allergen; an animal allergen; and at least one of: a non-nut plant allergen; a biotic agent; and a vitamin Also provided are methods of administering the mixed allergen compositions to a subject. The mixed allergen compositions find use in a variety of applications, including health maintenance, immune balance, gut balance, immune support, health improvement and therapeutic applications.

Mixed allergen compositions of two or more different allergens are provided. In some instances, the mixed allergen compositions include: a nut allergen; an animal allergen; and at least one of: a non-nut plant allergen; a biotic agent; and a vitamin Also provided are methods of administering the mixed allergen compositions to a subject. The mixed allergen compositions find use in a variety of applications, including health maintenance, immune balance, gut balance, immune support, health improvement and therapeutic applications.

A monocomponent vaccine effective to moderate the clinical consequences of Chages disease, capable of stimulating an immune response against the trans-sialidase virulence factor of the Trypanosoma cruzi parasite. The vaccine active ingredient is an immunogenic component with a polynucleotide encoding one or more polypeptide(s) which includes a C-terminal region composed of at least two repetitive units of amino acids, with a polypeptide with trans-sialidase activity of Trypanosoma cruzi fused to the C-terminal region. The vaccine further comprises an aluminum oxide adjuvant that does not inhibit trans-sialidase enzymatic activity of the immunogen portion.

A monocomponent vaccine effective to moderate the clinical consequences of Chages disease, capable of stimulating an immune response against the trans-sialidase virulence factor of the Trypanosoma cruzi parasite. The vaccine active ingredient is an immunogenic component with a polynucleotide encoding one or more polypeptide(s) which includes a C-terminal region composed of at least two repetitive units of amino acids, with a polypeptide with trans-sialidase activity of Trypanosoma cruzi fused to the C-terminal region. The vaccine further comprises an aluminum oxide adjuvant that does not inhibit trans-sialidase enzymatic activity of the immunogen portion.

Provided is a polypeptide composition comprising one or more polypeptides, which polypeptides are immunogenic in a vertebrate such that they cause the vertebrate to produce immune system cells capable of recognizing at least one epitope from an arthropod saliva protein fraction, wherein the arthropod saliva protein fraction has a mass of 40 kDA or less, and wherein the polypeptides are selected independently from: the polypeptide sequences of SEQ ID 1-44 or sub-sequences from these sequences, the sub-sequences having 7 amino acids or more; or from polypeptide sequences having 85% homology or more with one or more of the above sequences and contained in one or more of the following databases: GenBank, Protein Data Bank (PDB), SwissProt, Protein Information Resource (PIR), Protein Research Foundation (PRF), or CDS translations of these.

Provided is a polypeptide composition comprising one or more polypeptides, which polypeptides are immunogenic in a vertebrate such that they cause the vertebrate to produce immune system cells capable of recognizing at least one epitope from an arthropod saliva protein fraction, wherein the arthropod saliva protein fraction has a mass of 40 kDA or less, and wherein the polypeptides are selected independently from: the polypeptide sequences of SEQ ID 1-44 or sub-sequences from these sequences, the sub-sequences having 7 amino acids or more; or from polypeptide sequences having 85% homology or more with one or more of the above sequences and contained in one or more of the following databases: GenBank, Protein Data Bank (PDB), SwissProt, Protein Information Resource (PIR), Protein Research Foundation (PRF), or CDS translations of these.