Study: Unravelling the role of the mandatory use of face covering masks for the control of SARS-CoV-2 in schools: a quasi-experimental study nested in a population-based cohort in Catalonia (Spain)
Conclusions: We found no significant differences in SARS-CoV-2 transmission due to FCM mandates in Catalonian schools.
https://adc.bmj.com/content/early/2022/08/23/archdischild-2022-324172