Risk of reinfection, vaccine protection, and severity of infection with the BA.5 omicron subvariant: a nation-wide population-based study in Denmark

Christian Holm Hansen, Nikolaj Ulrik Friis, Peter Bager, Marc Stegger, Jannik Fonager, Anders Fomsgaard, Mie Agermose Gram, Lasse Engbo Christiansen, Steen Ethelberg, Rebecca Legarth, Tyra Grove Krause, Henrik Ullum, Palle Valentiner‐Branth