The present invention relates to use of probiotic compositions and/or histamine degrading enzymes for the control of histamine in a farm production animal, companion animal, aquaculture, or a human, to reduce or eliminate the incidence of necrotizing enterocolitis and/or related inflammatory conditions in the gastrointestinal tract or skin, and behavioral conditions. The invention also relates to the probiotic compositions and/or histamine degrading enzymes.

Bifidobacterium longum strains and cell wall fractions isolated from Bifidobacterium longum strains are useful in the prophylaxis or treatment of a respiratory viral infection in a subject. They are also useful in the prophylaxis of a secondary bacterial infection associated with a respiratory viral infection in a subject, especially a subject who is susceptible to respiratory infections.

This document provides methods and materials involved in assessing mammals (e.g., humans) for arthritis. For example, methods and materials for assessing a mammal's gut microbial diversity to identify the mammal as having arthritis (e.g., rheumatoid arthritis) are provided. This document also provides methods and materials involved in treating arthritis.

A therapeutic vaccination method includes growing and harvesting viruses, bacteria, fungi, parasites, or tumor cells on a cell culture or other appropriate medium; killing the viruses, bacteria, fungi, parasites, or tumor cells in the cell culture or other appropriate medium with a dose of methylene blue; separating the dead viruses, bacteria, fungi, parasites, or tumor cells from a remainder of the cell culture or other appropriate medium using a filter and/or centrifuge; adding antivirals, antibacterials, antifungals, antiparasitics, and/or anti-neoplastic medications at non-toxic therapeutic concentrations to the dead viruses, bacteria, fungi, parasites, or tumor cells so as to form a therapeutic vaccine; and administering the therapeutic vaccine to a patient in need thereof to simultaneously produces a therapeutic response and a humoral and cellular immune response in the body of the patient without resulting in deleterious side effects to the patient.

A therapeutic vaccination method includes growing and harvesting viruses, bacteria, fungi, parasites, or tumor cells on a cell culture or other appropriate medium; killing the viruses, bacteria, fungi, parasites, or tumor cells in the cell culture or other appropriate medium with a dose of methylene blue; separating the dead viruses, bacteria, fungi, parasites, or tumor cells from a remainder of the cell culture or other appropriate medium using a filter and/or centrifuge; adding antivirals, antibacterials, antifungals, antiparasitics, and/or anti-neoplastic medications at non-toxic therapeutic concentrations to the dead viruses, bacteria, fungi, parasites, or tumor cells so as to form a therapeutic vaccine; and administering the therapeutic vaccine to a patient in need thereof to simultaneously produces a therapeutic response and a humoral and cellular immune response in the body of the patient without resulting in deleterious side effects to the patient.

Provided are use of an Echovirus 25 (ECHO25) or a modified form thereof, or a nucleic acid molecule comprising a genomic sequence or cDNA sequence of the ECHO25 or a modified form thereof, or a complementary sequence of the genomic sequence or cDNA sequence, in treatment of a tumor in a subject, and in the manufacture of a medicament for treatment a tumor in a subject.

Provided are use of an Echovirus 25 (ECHO25) or a modified form thereof, or a nucleic acid molecule comprising a genomic sequence or cDNA sequence of the ECHO25 or a modified form thereof, or a complementary sequence of the genomic sequence or cDNA sequence, in treatment of a tumor in a subject, and in the manufacture of a medicament for treatment a tumor in a subject.

The present disclosure provides variant immunomodulatory polypeptides, and fusion polypeptides comprising the variant immunomodulatory peptides. The present disclosure provides T-cell modulatory multimeric polypeptides, and compositions comprising same, where the T-cell modulatory multimeric polypeptides comprise a variant immunomodulatory polypeptide of the present disclosure. The present disclosure provides nucleic acids comprising nucleotide sequences encoding the T-cell modulatory multimeric polypeptides, and host cells comprising the nucleic acids. The present disclosure provides methods of modulating the activity of a T cell; the methods comprise contacting the T cell with a T-cell modulatory multimeric polypeptide of the present disclosure.

Bifidobacterium longum strains and cell wall fractions isolated from Bifidobacterium longum strains are useful in the prophylaxis or treatment of a respiratory viral infection in a subject. They are also useful in the prophylaxis of a secondary bacterial infection associated with a respiratory viral infection in a subject, especially a subject who is susceptible to respiratory infections.

The present application belongs to the field of life health, and discloses a sugar chain and a composition thereof, and use in the prevention and/or treatment of coronavirus infection. The sugar chain contains any one or more of Neu5Acα2-N.sub.1Gal building blocks, and/or any one or more of xFuc-N.sub.1Gal-N.sub.1(xFuc-N.sub.1)GlcNAc building blocks, at the non-reducing end, where, x=0 or 1, and N.sub.1=1, 2, 3, 4 or 6. A glycosidic bond formed between Neu5Ac and Gal is an α2 glycosidic bond. In the xFuc-N.sub.1Gal-N.sub.1(xFuc-N.sub.1)GlcNAc building blocks, a glycosidic bond formed between any two adjacent monosaccharides is an α1 or β1 glycosidic bond. The specific building block contained at the non-reducing end of the sugar chain blocks the binding of the virus to the host, thereby blocking virus invasion and infection of the respiratory tract/lung, and achieving the specific prevention and treatment.