Upon use, PBMC were thawed in IMDM (Lonza, Belgium) supplemented with 10% FBS, 100 IU of penicillin/ml, 100 µg of streptomycin/ml (Lonza, Belgium) and 2 mM L-glutamine (Lonza, Belgium) (I10F medium).
PBMC were plated in 96-wells U bottom plates at 1 x 106 PBMC per well in RPMI1640 (Lonza, Belgium) supplemented with 10% human
serum, 100 IU of penicillin/ml, 100 µg of streptomycin/ml (Lonza, Belgium) and 2 mM L-glutamine (Lonza, Belgium) (R10H medium) and subsequently stimulated with the
described CD4 and CD8 SARS-CoV-2 MPs at 1µg/ml.