Our last article A multiplex serological assay for the characterization of IgG immune response to SARS-CoV-2 (Plos One, January 2022) in collaboration with a team from the CHU (Hospital-University Center) of Amiens and the company Innobiochips is available in free access. This work aims to understand and track the evolution of the immune response in the long run after infection and in perspective to the antibody ability to neutralize the virus.