COVID-19(17) SARS-CoV-2(16) facilitate(12) cells(11) SARS-COV-2 infection(11) development(9) pandemic(9) vaccination(9) platform(9) ranged(8) healthy control(8) transfected cells(6) outcome(6) Cell(6) Antibody titer(6) flow cytometry(6) NK cell degranulation(6) elicited(6) the SARS-CoV-2(6) capture(6) infected cells(6) SARS-CoV-2-infected individuals(6) Antibody Response(6) Spearman(6) develop(6) functional antibody response(6) function(6) magnitude(6) SARS-CoV-2-infected cell(6) Efficiency(6)