Before leaving the vaccination center at the exhibition center in Caen, people who have come to receive their dose have the opportunity to write a little note in a guest book located just before the exit. It was by consulting the latter that the Calvados firefighters discovered that they had welcomed a vaccinee far from being unknown to the general public. The Norman rapper, Orelsan, indeed thanked the staff of the Caen vaccinodrome after his appointment for the anti-Covid vaccine.