SLU Study Shows St. Louis, St. Louis County Mask Mandates Slowed Coronavirus Infections
Epidemiologists at St Louis University say the rate of new coronavirus cases significantly decreased in St. Louis and St. Louis County after government officials began requiring people to wear masks in public.
The findings come from a preliminary study in which researchers studied coronavirus cases in St. Louis and St. Louis County and compared the data to that of St. Charles, Jefferson and Franklin counties, which did not require masks.
Before St. Louis and St Louis County began requiring face coverings in July, the rates of new cases in all the counties were similar.
But three weeks after the city and county began requiring masks, their rate of new infections was 44% lower than those of the other counties, researchers said.
https://news.stlpublicradio.org/coronavirus/2020-11-27/slu-study-shows-st-louis-st-louis-county-mask-mandates-slowed-coronavirus-infections