The present invention relates to a therapy for treating or preventing several diseases in animals, based on the administration of a highly concentrated avian derived immunoglobulins formulation, obtained from the egg yolk from hens previously hiper-immunized with a vaccine formulation comprising infectious agents or toxins antigens, a light mineral oil and a particulate adjuvant.

The present invention relates to the use of a composition selected from the group consisting of antibodies, antibody fragments, insulin-like growth factor antagonists, Toll-like receptor antagonists and mixtures thereof for the treatment or the prophylaxis of certain diseases.

The present invention provides compositions, kits, and methods for the detection of host cell proteins (HCPs) in biological samples. In some embodiments, the present invention utilizes immunization of ayes hosts with proteins derived from non-ayes host cells to produce ayes antibodies specific for non-ayes HCPs.

A topical intranasal antiviral composition for protecting against virus infections. The composition comprises an antigen binder and a pharmaceutical suspender material to allow effective delivery into the nasal cavity. Examples of materials that could be used in the pharmaceutical suspender are microcrystalline cellulose or sodium carboxymethylcellulose (Na⋅CMC). One particular target for the antigen binder could be SARS-CoV-2. For example, the antigen binder could target the S1 subunit of SARS-CoV-2. The composition could be made by a process in which the pharmaceutical vehicle is prepared, and then the antigen binder is added to the pharmaceutical vehicle to make a bioactive mixture, and then adding solid sodium chloride to the bioactive mixture. Also disclosed are methods of protection against virus infection using the intranasal antiviral composition. For example, in the case of SARS-CoV-2, the antigen binder would block the virus particles from attaching to ACE2 receptors on host cells of the nasal mucosa or nasopharynx. This blocking action would protect against virus infection.

Disclosed herein are methods of reducing a symptom of respiratory disease in a pre-weaned milk-fed mammal by orally administering an isolated antibody that specifically binds the interleukin-10 peptide or an anti-interleukin-10 antibody. Also included are methods of reducing mixing stress in human and non-human mammals by administering an isolated antibody that specifically binds the interleukin-10 peptide or an anti-interleukin-10 antibody. Further included are milk and food compositions including the interleukin-10 peptide or anti-interleukin-10 antibody.

Chicken egg yolk antibodies (IgY Abs) specific to the Middle Eastern Respiratory Syndrome coronavirus spike (MERS-CoV S) protein demonstrate efficacy against MERS-CoV infection. The S-specific IgY Abs (anti-S IgY) are produced by injecting chickens with purified a recombinant MERS-CoV S protein, S1 subunit, or an S1 fragment. The purified anti-S IgY specifically bind to the MERS-CoV S protein and inhibit infection. In vitro neutralization of the IgY Abs against MERS-CoV was achieved in cell lines and in a human-transgenic mouse model treated with a pharmaceutical composition comprising the anti-S IgY. Viral antigen-positive cells in treated mice were reduced, compared to the adjuvant-only controls. Moreover, lung cells of anti-S IgY-treated mice showed significantly reduced inflammation, compared to the controls. Efficient neutralization of MERS-CoV infection is demonstrated both in vitro and in vivo using the anti-S IgY Abs.

A prophylactic and/or therapeutic food composition for control of deformed wing vims (DWV) in bees and/or bee larvae, and methods of using and making the same. Bee feed compositions comprising anti-DWV antibodies dispersed in an edible base composition. Use of recombinant VP1, VP2, VP3, and/or VP4 capsid proteins, or VLPs of deformed wing vims (DWV) to passively generate anti-DWV antibodies in chicken egg yolks, and use of such anti-DWV antibodies for prophylaxis or treatment of deformed wing virus in the bees and/or larvae.

In one aspect, the present invention is directed to a method for preventing or treating necrotic enteritis by administering a hyperimmunized egg product obtained from an egg-producing animal to an avian. The hyperimmunized egg product may contain an antibody specific to an antigen selected from the group consisting of Clostridium perfringens α-toxin, Clostridium perfringens elongation factor Tu (EF-Tu), Clostridium perfringens necrotic enteritis B-like (NetB) toxin, Clostridium perfringens Pyruvate: Ferredoxin oxidoreductase (PFO), and Eimeria tenella elongation factor 1-alpha.

Formulations of egg powders with avian antibodies that act as mucosal protectants are provided. The formulations are effective for protecting the mucosal membranes in the pharyngeal area of an individual from viral infections. Formulations effective for reducing infections of SARS-CoV-2 in individuals are provided. Formulations are also effective for reducing transmission of viral disease. The formulations are tablets, candies, gummies, throat lozenges, and powders for administering to the pharyngeal area. Methods for administering the formulations for reducing viral disease such as Covid-19 are disclosed.

Compositions are described that include colostrum and/or milk replacer combined with pathogen specific avian antibodies. These pathogen specific avian antibodies include antibodies against pathogens causing infections and disease in the digestive tract as well as outside the digestive tract. Feeding regimens and methods for administering the colostrum and/or milk replacer with the pathogen specific avian antibodies result in the presence of IgY antibodies in the serum of a neonatal animal. The IgY antibody in the serum can neutralize pathogens causing infections outside of the digestive tract.