COVID: do masks work? they do in Kansas
The question keeps coming up over whether masks are actually useful. i will present one study on mask use in Kansas in this blog, and another on a Danish study in the next blog. --------------------- MMWR just published a county level survey in Kansas from June 1 to August 23, comparing Covid-19 incidence in counties with and without a mask mandate (see https://www.cdc.gov/mmwr/volumes/69/wr/mm6947e2.htm ) Details: -- July 2, 2020: Kansas governor issued an executive order effective July 3 requiring people to wear a mask in public spaces, though the mandate allowed counties authority to opt out -- as of August 11: 24 of Kansas' 105 counties accepted the state mandate or had their own mask mandate; 81 counties opted out -- counties accepting the mandate account for two thirds of the Kansas population (1,960,703 people, 67%), spread throughout the state, though they did tend to cluster together ...