Incidence and risk factors of COVID-19-like symptoms in the French general population during the lockdown period: a multi-cohort study.. Carrat, Fabrice; Touvier, Mathilde; Severi, Gianluca; Meyer, Laurence; Jusot, Florence; Lapidus, Nathanael; Rahib, Delphine; Lydié, Nathalie; Charles, Marie-Aline; Ancel, Pierre-Yves; Rouquette, Alexandra; de Lamballerie, Xavier; Zins, Marie; Bajos, Nathalie. BMC infectious diseases. 2021; 21: p.169. doi:10.1186/s12879-021-05864-8Article