Abbreviations
COVID-19 Coronavirus disease-2019
SARS-CoV-2 severe acute respiratory syndrome coronavirus 2
ALL B cell acute lymphoblastic leukemia
PCR Polymerase Chain Reaction
RNA Ribonucleic Acid
CBC complete blood count
Treg regulatory T cell
DNT double-negative T cell
TFH T follicular helper cells
EBV Epstein-Barr virus