COVID-19(73) SARS-CoV-2(50) antibody(26) diagnostic(18) sensitivity(16) detect(16) Patient(16) AUC(15) serology(15) SARS-CoV-2.(13) collected(13) coronavirus disease(12) Support(12) COVID-19 patients(12) Biomarker(12) demonstrated(12) prognostic(11) procalcitonin(11) outcome(11) Laboratory(11) Surveillance(11) tested(10) elevated(10) Infection(10) ICU(10) serum(10) risk stratification(10) Biomarkers(10) individual(9) shown(9)