Nationwide study on SARS-CoV-2 transmission within households from lockdown to reopening, Denmark, 27 February 2020 to 1 August 2020 Lyngse, Frederik Plesner and Kirkeby, Carsten and Halasa, Tariq and Andreasen, Viggo and Skov, Robert Leo and Møller, Frederik Trier and Krause, Tyra Grove and Mølbak, Kåre, Eurosurveillance, 27, 2001800 (2022), https://doi.org/10.2807/1560-7917.ES.2022.27.6.2001800