Epidemiological study of the prevalence of COVID-19 immunological status through the use of rapid serological tests for diagnostic guidance in the healthcare and medico-social institutions of the UNIVI group. FRESH-PEF73756-en Stéphane VERDUN Epidemiological study of the prevalence of COVID-19 immunological status through the use of rapid serological tests for diagnostic guidance in the healthcare and medico-social institutions of the UNIVI group. SEROCOVID FRESH-PEF73756-en 73756 FRESH-PEF73756 Stéphane VERDUN Epidemiology France Portal (PEF) UNIVI null EHPAD Geriatrics COVID-19 Socio-demographic and economic determinants: Employment Socio-demographic and economic determinants To study the prevalence and serological profile (presence of antibodies and therefore of contact with SARS COV2) in asymptomatic EHPAD residents and nursing staff (without symptoms suggestive of ongoing COVID 19 infection), as well as that of asymptomatic nursing staff in UNIVI group health facilities. null France Individuals General population Male Female Young Adult (19 to 24 years) Adult (25 to 44 years) Middle Aged (45 to 64 years) Aged (65 to 79 years) Aged, 80 and over (80 years and more) Clinical data Participant-reported health data Biological data One-time cross-sectional study Other Through organizations (health services or institutions schools businesses etc.) Converting or copying information into a structured record Observational Study Observational Study 1167 residents and 1342 professionals Unknown Metadata-only access