Abstract: A multivalent vaccine for preventing CoV infection includes more than one protein antigen derived from antigens encoded within a CoV genome. At least one of the more than one protein antigen derived from antigens encoded within a CoV genome is a protein antigen, RNA-encoded genetic information, DNA-encoded genetic information, or genetic information within a genetic vector.

Abstract: A vaccine for preventing CoV infection includes at least one DNA, RNA or protein sequence for S protein with at least one modification which is a full deletion or partial deletion of the SI region or a partial or full replacement of the SI region. A method of vaccinating a mammal subject against infection from at least one group of CoV includes separating a broad group of CoV into homology groups, creating a modified S protein containing at least one modification at its S1 region, and identifying at least one consensus sequence for each homology group which has a sequence identity of greater than 60% to all other members of the homology group. The consensus sequence is a protein sequence for the modified S protein, a DNA sequence encoding the modified S protein, and an RNA sequence encoding the modified S protein.

Abstract: A vaccine for preventing ?-CoV infection includes at least one viral vector containing a ?-CoV DNA sequence which codes the S protein for the ?-CoV. The ?-CoV RNA sequence can be a SARS-2 ?-CoV DNA sequence. The vaccine may further includes a packaging plasmid based on an adenovirus. The viral vector and packaging plasmid can be contained in a packaging cell and encapsidated in a capsid. A method of vaccinating a mammal subject against infection from at least one group of ?-CoV includes separating a broad group of ?-CoV into homology groups based on similarities in the ?-CoV RNA sequences which code for their S proteins, identifying at least one consensus sequence for each homology group which has a sequence identity of greater than 60% to all other members of the homology group, and preparing a viral vector including at least a portion of the consensus sequence from at least one homology group.