SARS-CoV-2 incidence in secondary schools; the role of national and school-initiated COVID-19 measures.
L JonkerK J LindeAnnemarijn R de BoerE DingD ZhangM L A de HoogS HerfstD J J HeederikP L A FraaijP M BluyssenI M WoutersP C J L Bruijning-VerhagenPublished in: BMC public health (2023)
levels most of the time below acceptable thresholds, only the national policy during and post-lockdown of reduced class-occupancy, stringent quarantine, and contact testing reduced SARS-CoV-2 incidence in Dutch secondary schools. Widespread SARS-CoV-2 air contamination could not be demonstrated in schools under the prevailing conditions during the study.