Abbreviations
SARS-CoV-2: Severe acute respiratory syndrome coronavirus 2; ARDS: Acute
respiratory distress syndrome; COVID-19: Coronavirus disease 2019;
RT-qPCR: Quantitative reverse transcription polymerase chain reaction;
anti-NP: Anti-nucleocapsid protein; anti-S-RBD: Anti-spike protein
receptor binding domain; OD- olfactory dysfunction, VL: viral load;
hCOV- human coronaviruses; TDI: threshold (T), discrimination (D) and
identification (I); MFI: mean fluorescence intensity, -ve: negative,
+ve: positive, Ct -cycle threshold