The primary objective is to assess the cumulative incidence of infection in the general population using dried blood spot sampling.
The secondary objectives are:
- To identify factors associated with a positive SARS-CoV-2 infection (positive serology) and to characterize the durability of the serological response to SARS-CoV-2
- To identify associations of symptoms predictive of a SARS-CoV-2 infection
- To estimate the health care use assoicated with a SARS-CoV-2 infection
- To estimate the fraction of sub-clinical infections or infections not captured by the healthcare system;
- To study the acceptability of a mass anti-SARS-CoV-2 serological testing and the impact of its result, linked with social inequalities in health;
- To estimate the individual and collective impact of containment and other preventive measures on the risk of SARS-CoV-2 infection;
- To study the impact of social and territorial inequalities on seroprevalence levels.
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