SARS-CoV-2(129) COVID-19(104) acute respiratory syndrome(72) coronavirus(72) coronavirus disease(58) Protein(46) Infection(42) Patient(42) pandemic(37) Vaccine(37) binding(33) description(33) demonstrated(31) epitope(29) mechanism(29) COVID-19 pandemic(29) T cell(28) SARS-CoV-2 variant(27) immune(27) Receptor binding domain(26) virus(26) RBD(26) antibody(26) mice(25) provide(25) reveal(25) platform(24) detect(24) SARS-COV-2 infection(24) effective(23)