An update of the evidence on COVID-19 in children and the role of school settings in transmission by the European Centre for Disease Prevention and Control (ECDC) highlights that the incidence of COVID-19 in school settings appears to be impacted by community transmission levels: https://www.ecdc.europa.eu/sites/default/files/documents/COVID-19-in-children-and-the-role-of-school-settings-in-transmission-first-update_1.pdf The impact of school opening and closures on community transmission will also be influenced by broader factors (such as the increased opportunity for work and social contacts...