Created at	Source	Raw Value	Validated value
Feb. 18, 2021, 1:30 a.m.	eu	ELISA RBD antibodies (IgG) 28 days after booster dose. For those with a previous COVID infection, the in house multiplex assay from Sciensano will be performed to discriminate between previous infection and vaccination	ELISA RBD antibodies (IgG) 28 days after booster dose. For those with a previous COVID infection, the in house multiplex assay from Sciensano will be performed to discriminate between previous infection and vaccination