Fox News
One of the most prominent pro-mask mandate studies during the COVID pandemic was a misleading failure
Wednesday, July 1, 2026
A 2020 mask mandate study was examined for methodological issues and data selection practices. The study, conducted by researchers at the University of Kansas, analyzed COVID-19 case trends across counties before and after mask mandates were implemented. The CDC cited the research when developing masking guidance during the pandemic. Researchers who reviewed the study identified concerns about how the data was selected and analyzed.
