Mask mandates and restaurant restrictions lower coronavirus cases and deaths, according to new research from the Centers for Disease Control and Prevention.
However, the report released Friday finds that the effects, though significant, are relatively small.
The CDC examined cases and deaths at the county level from March to December 2020 in the first 100 days after masks were mandated and restaurants were allowed to reopen. Counties in states that issued mask mandates saw COVID-19 cases drop by half of a percentage point in the first 20 days. The effect grew, topping out at a decline of 1.8 percentage points between days 81 and 100. Deaths dropped by 0.7