ACE2	angiotensin converting enzyme 2
CD147	cluster of differentiation 147 protein, encoded by the BSG gene
COVID-19	coronavirus disease 2019
GPA	glycophorin A
NTD	N-terminal domain
PBS	phosphate-buffered saline
RBC	red blood cell
RBD	receptor binding domain
RCT	randomized clinical trial
SA	sialic acid
SARS-CoV-2	severe acute respiratory syndrome coronavirus 2