coronavirus(7) SARS-CoV-2(7) acute respiratory syndrome(7) COVID-19(6) coronavirus disease(5) Protein(4) analyzed(3) pandemic(3) identify(3) caused(3) Treatment(3) Analysis(3) respiratory syndrome coronavirus(2) binding affinity(2) COVID-19 antibody(2) Confidence intervals(2) MERS-CoV genome(2) country(2) disease(2) globe(2) Wald method(2) Spread(2) Vaccine(2) Korean(2) positive(2) antibody(2) performed(2) molecular docking(2) researcher(2) 95% confidence interval(2)