ABBREVIATIONS:
2p, 2 proline; 6p, Hexaproline; AFM, Atomic force microscopy; Alum, Aluminium hydroxide; CD33 SP, Cleavable signal peptide; COVID-19, Coronavirus Disease-2019; CpG, Cytosine-phosphate-Guanine; CT, Cytoplasmic tail; CTL, Cytotoxic T lymphocyte; E, Envelope protein; EC50, Half maximal effective concentration; ELISA, Enzyme linked immunosorbent assay; FD, T4 fibritin trimerization domain; FP, Fusion peptide; GMT, Geometric mean titer, GT,Gomori trichrome; H&E, Hematoxylin and eosin; hACE2, Human angiotensin-converting enzyme 2; HD, High dose; HEK293, Human embryonic kidney cell line; His, Histidine tag; HR, Heptad repeat; IFN-γ, Interferon gamma; IL, Interleukin; LD, Low dose; M, Membrane protein; MFI, Mean fluorescence intensity; N, Nucleocapsid protein; NC, Nucleocapsid; NTD, N- terminus domain; ODN, Oligodeoxynucleotide; PEIpro, polyethylene imine transfection reagent; Pfu, Plaque forming unit; RBD, Receptor binding domain; S, Spike protein; SARS-CoV-2, Severe acute respiratory syndrome coronavirus 2; SEM, Scanning electron microscopy; TEM, Transmission electron microscopy; TEV, Tobacco etch virus; TH1, T helper 1; TH2, T helper 2; THM, Thrombin cleavage site; TM, Transmembrane domain; TRPS, Tunable resistive pulse sensing; VAERS, Vaccine adverse event reporting system; VLP, Virus-like particle; VNT, Virus neutralization titer; WT, Wild type