Inclusion Criteria:  For the group with a past history of COVID-19 (convalescents)= subject within ≥ 3 months after infection For the NO past history of COVID-19 (naives), subject with no known history of COVID-19 Patient affiliated or entitled to a social security plan Patients who have received informed information about the study and who have co-signed a consent to participate in the study with the investigator  Exclusion Criteria:  Immunocompromised or under immunosuppressive treatment Subject with a history of COVID hospitalized in intensive care Subject allergic to one of the components of the vaccines used in the study subject vaccinated for COVID-19 Subject with persistent symptoms of COVID-19 (long COVID) Subjects with unstable chronic pathology Persons deprived of liberty, hospitalized without consent Pregnant or breastfeeding woman