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COVID-19 Maps of Mask Use

Published May 27, 2021

As of May 2021, we are no longer updating this post. 

Data sources: Premise (US only); The Delphi Group at Carnegie Mellon University and University of Maryland COVID-19 Trends and Impact Surveys, in partnership with Facebook; Kaiser Family Foundation; YouGov COVID-19 Behaviour Tracker survey. 














 


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