MERS-CoV	Middle East respiratory syndrome coronavirus
DPP4	dipeptidyl peptidase 4
RBD	receptor-binding domain
i.v.	intravenous
mAb	monoclonal antibody
CDR	complementarity-determining region
scFv	single-chain variable fragment
PBMC	peripheral blood mononuclear cell
SE-HPLC	size-exclusion high-performance liquid chromatography
DLS	dynamic light scattering
PRNT	plaque reduction neutralization test