A process for producing a composition from a biological source, which composition is preserved and, especially pathogen free and is storage stable, preferably at room temperature. Embodiments of the invention provide a process for producing a composition from eggs.

A welding system includes an inductor on an output of a welding power supply. The power supply may be of the type including an engine and a generator for producing power, with power conversion circuitry conditioning the power to a form suitable for a stick welding application. The inductor has an inductance sufficient for storing energy for maintaining a welding arc with XX10 electrodes, such as on the order of 700 mH. The inductor may have a particular structure, such as one designed around T and L shaped core elements.

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.

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.