Very interesting study from Cornell. Mandatory masking, mandatory student vaccination, required PCR tests once/wk, isolation and contact tracing within hours of positive test result.
Mask mandates failed (go figure) and 98.6% of cases were breakthroughs.https://t.co/YBcu8PIyNM
— Jeremy Redfern (@JeremyRedfernFL) May 21, 2022
JAMA paper.