Assessment 2 months after the administration of a 3rd dose mRNA: a new variant-adapted vaccine is expected. Issue 4 (April 2022) - Tré-Hardy, Marie; Cupaiolo, Roberto; Wilmet, Alain; Antoine-Moussiaux, Thomas; Coman-Vlagea, Nicoleta; Della Vecchia, Andrea; Horeanga, Alexandra; Papleux, Emmanuelle; Vekemans, Marc; Beukinga, Ingrid; Blairon, Laurent