SARS-CoV-2 Seropositivity in Nursing Home Staff and Residents during the First SARS-CoV-2 Wave in Flanders, Belgium oleh Liselore De Rop, Hanne Vercruysse, Ulysse Alenus, Judith Brusselmans, Steven Callens, Maud Claeys, Nimphe De Coene, Peter Persyn, Elizaveta Padalko, Stefan Heytens, Jan Y. Verbakel, Piet Cools