Study finds fewer COVID-19 cases in schools with mandatory masking during Delta surge. The study included more than 1.1 million students and over 157,000 staff attending in-person school across nine states. Including, North Carolina, Wisconsin, Missouri, California, Washington, Kansas and Texas User Wagamaga, in the Reddit Science subreddit, 11 Mar 2022
School Masking Policies and Secondary SARS-CoV-2 Transmission User D-R-AZ, in the Novel Coronavirus (COVID-19) subreddit, 10 Mar 2022