COVID-19 exposure in SARS-CoV-2-seropositive hospital staff members during the first pandemic wave at Strasbourg University Hospital, France. - Velay A; Gallais F; Wendling MJ; Bayer S; Reix N; Schneider A; Glady L; Collongues N; Lessinger JM; Hansmann Y; Kling-Pillitteri L; De Sèze J; et al. (Infectious diseases now, 2022)