COVID-19 vaccine booster, Immunogenicity, Safety, Omicron, mRNA vaccine, Pandemic preparedness, Vaccine equity, Neutralizing antibody, T-cells
COVID-19, SARS-CoV-2, whole inactivated virus vaccine, variants of concern, Ad26.COV2.S, Heterologous booster, neutralizing antibodies, delta, omicron, Thailand
Keywords: Bivalent mRNA boost, immune response, COVID-19, inactivated vaccine primed
NDV-HXP-S COVID-19 vaccine, bivalent mRNA booster, immune response