Bank of Human Leukocytes From COVID-19 Convalescent Donors With an Anti-SARS-CoV-2 Cellular Immunity

Inclusion Criteria: * Patient hospitalised for proved SARS-CoV-2 infection in the infectious disease unit of the Nancy University Hospital who received a comprehensive information about the study, and accepted to participate * Patient who has an active cellular immunity against SARS-CoV-2 (biological definition: Elispot IFNgamma : \> 50 SFC/106 PBMC) Exclusion Criteria: * Patient hospitalised in Intensive car unit * Patient with haemoglobin \< 10 g/dl * Patient who take hypertension medication * Patient with cardiovascular history: Valvulopathy, conduction rythm disorders, arterial vascular insufficiency, congenital anomalies * Patient with auto-immune disease * Patient with medical history of solid or hematopoietic graft * Patient with active malignant disease (haematological or neoplasm) or considered in remission since less than 2 years * Patient with psychiatric disorders * Patient subject to a legal protection measure. * Patient with proved infectious disease * Asplenic patient * Pregnant or breastfeeding woman * Woman without contraception