Animals Antibodies, Viral Article 2 COVID-19 2 SARS-CoV-2 2 Severe acute respiratory syndrome coronavirus 2 Spike Glycoprotein, Coronavirus 2 animal 2 coronavirus spike glycoprotein 2 genetics immunology 2 nonhuman 2 pandemic 2 spike protein, SARS-CoV-2 virus antibody 2 2009 H1N1 influenza 1 Administration, Intranasal 1 Antigens, Viral 1 Bagg albino mouse 1 CD3+ T lymphocyte 1 CD4+ T lymphocyte 1 Computational Biology 1 Coronavirinae 1 Coronavirus Infections 1 Coronavirus infection 1 Epitopes, B-Lymphocyte 1 Evolution, Molecular 1 Gene Expression 1 Hemagglutinin Glycoproteins, Influenza Virus 1 Host Microbial Interactions 1