medRxiv preprint doi: https://doi.org/10.1101/2020.09.18.20191254; this version posted September 18, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-ND 4.0 International license . Title Variation in SARS-CoV-2 seroprevalence in school-children across districts, schools and classes Authors Agne Ulyte*, MD, Thomas Radtke*, PhD, Irene A. Abela*, MD, PhD, Sarah R Haile, PhD, Jacob Blankenberger, BSc, Ruedi Jung, PhD, Céline Capelli, BSc, Christoph Berger, Prof, Anja Frei, PhD, Michael Huber, PhD, Merle Schanz, PhD, Magdalena Schwarzmueller, MSc, Alexandra Trkola$, Prof, Jan Fehr$, Prof, Milo A. Puhan$, Prof, Susi Kriemler$#, Prof * shared first authorship $ shared last authorship # corresponding author Corresponding author: Susi Kriemler Tel: +41 44 634 63 20
[email protected] Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich Hirschengraben 84 8001 Zürich, Switzerland Agne Ulyte,
[email protected], Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Hirschengraben 84, 8001 Zürich, Switzerland Thomas Radtke,
[email protected], Epidemiology, Biostatistics and Prevention Institute (EBPI), University of Zurich, Hirschengraben 84, 8001 Zürich, Switzerland Irene A. Abela,
[email protected], Institute of Medical Virology, University of Zurich, Winterthurerstrasse 190, 8057 Zürich, Switzerland Sarah