Ulyte A, Haile SR, Blankenberger J, Radtke T, Puhan MA, Kriemler S. SARS-CoV-2 seroprevalence in children, parents and school personnel from June 2020 to April 2021: cohort study of 55 schools in Switzerland. Swiss Med Wkly [Internet]. 2022 Jun. 13 [cited 2024 Jul. 18];152(2324):w30193. Available from: https://smw.ch/index.php/smw/article/view/3214