In one aspect, the present disclosure is directed to a method for preventing or treating a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a hyperimmunized egg product obtained from an egg-producing animal, thereby preventing or treating coronavirus infection in the subject, wherein the hyperimmunized egg product comprises a therapeutically effective amount of one or more antibodies to the coronavirus. The present disclosure is also directed to hyperimmunized eggs and egg products produced by an animal that has been hyperimmunized with an antigen selected from i) a spike (S) protein, an S1 subunit protein, an S2 subunit protein, a receptor binding domain (RBD), and an immunogenic fragment thereof; ii) a nucleocapsid (N) protein, and an immunogenic fragment thereof; iii) a human ACE2 receptor protein, and an immunogenic fragment thereof; and iv) a human coronavirus selected from the group consisting of SARS-CoV, MERS-CoV, SARS-CoV-2, HCoV-HKU1, HCoV-NL63, HCoV-OC43 and HCoV-229E. Methods of preparing the hyperimmunized eggs and egg products are also disclosed.

Disclosed are probiotic formulations comprising fortified avian eggs and avian egg products such as egg powder, and methods for producing the same substantially no meat containing growth media such as MRS. The formulations may be used to supplement food that include, but are not limited to, baby foods, milk, and pet foods. Effective amounts of the fortified egg formulations comprising at least about 10.sup.9 CFU/dosage of probiotics may be used to treat health issues that include, but are not limited to, irritable bowel syndrome. The probiotic formulation may comprise bacterial strains comprising at least one of L. casei, L. rhamnosus, B. breve, Bifidobacterium longum, L. acidophilus, L. plantarum, B. bifidum, L. fermentum, L. lactis, L. paracasei, and L. salivarius.

Disclosed are probiotic formulations comprising fortified avian eggs and avian egg products such as egg powder, and methods for producing the same substantially no meat containing growth media such as MRS. The formulations may be used to supplement food that include, but are not limited to, baby foods, milk, and pet foods. Effective amounts of the fortified egg formulations comprising at least about 10.sup.9 CFU/dosage of probiotics may be used to treat health issues that include, but are not limited to, irritable bowel syndrome. The probiotic formulation may comprise bacterial strains comprising at least one of L. casei, L. rhamnosus, B. breve, Bifidobacterium longum, L. acidophilus, L. plantarum, B. bifidum, L. fermentum, L. lactis, L. paracasei, and L. salivarius.

Disclosed are probiotic formulations comprising fortified avian eggs and avian egg products such as egg powder, and methods for producing the same substantially no meat containing growth media such as MRS. The formulations may be used to supplement food that include, but are not limited to, baby foods, milk, and pet foods. Effective amounts of the fortified egg formulations comprising at least about 10.sup.9 CFU/dosage of probiotics may be used to treat health issues that include, but are not limited to, irritable bowel syndrome. The probiotic formulation may comprise bacterial strains comprising at least one of L. casei, L. rhamnosus, B. breve, Bifidobacterium longum, L. acidophilus, L. plantarum, B. bifidum, L. fermentum, L. lactis, L. paracasei, and L. salivarius.

Disclosed are probiotic formulations comprising fortified avian eggs and avian egg products such as egg powder, and methods for producing the same substantially no meat containing growth media such as MRS. The formulations may be used to supplement food that include, but are not limited to, baby foods, milk, and pet foods. Effective amounts of the fortified egg formulations comprising at least about 10.sup.9 CFU/dosage of probiotics may be used to treat health issues that include, but are not limited to, irritable bowel syndrome. The probiotic formulation may comprise bacterial strains comprising at least one of L. casei, L. rhamnosus, B. breve, Bifidobacterium longum, L. acidophilus, L. plantarum, B. bifidum, L. fermentum, L. lactis, L. paracasei, and L. salivarius.

In one aspect, the present disclosure is directed to a method for preventing or treating a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a hyperimmunized egg product obtained from an egg-producing animal, thereby preventing or treating coronavirus infection in the subject, wherein the hyperimmunized egg product comprises a therapeutically effective amount of one or more antibodies to the coronavirus. The present disclosure is also directed to hyperimmunized eggs and egg products produced by an animal that has been hyperimmunized with an antigen selected from i) a spike (S) protein, an S1 subunit protein, an S2 subunit protein, a receptor binding domain (RBD), and an immunogenic fragment thereof; ii) a nucleocapsid (N) protein, and an immunogenic fragment thereof; iii) a human ACE2 receptor protein, and an immunogenic fragment thereof; and iv) a human coronavirus selected from the group consisting of SARS-CoV, MERS-CoV, SARS-CoV-2, HCoV-HKU1, HCoV-NL63, HCoV-OC43 and HCoV-229E. Methods of preparing the hyperimmunized eggs and egg products are also disclosed.

A nutritional or dietary egg supplement or food product is provided that may be eaten by children or adults. The food product is made solely of whole hen's eggs or egg whites that have been heat treated to selectively denature allergenic proteins s compared to a natural hen's egg.

A nutritional or dietary egg supplement or food product is provided that may be eaten by children or adults. The food product is made solely of whole hen's eggs or egg whites that have been heat treated to selectively denature allergenic proteins s compared to a natural hen's egg.

A protein-rich composition can be provided from egg albumen via a process that involves diafiltering with purified water an egg albumen concentrate. Collected retentate from the diafiltration step constitutes a protein-rich composition which, on a dry basis, can include less than 1% (w/w) lipids. The composition can be spray dried to a protein isolate solid which is substantially free of sugars.

A protein-rich composition can be provided from egg albumen via a process that involves diafiltering with purified water an egg albumen concentrate. Collected retentate from the diafiltration step constitutes a protein-rich composition which, on a dry basis, can include less than 1% (w/w) lipids. The composition can be spray dried to a protein isolate solid which is substantially free of sugars.