A recent study from Cambridge and Greenwich universities in the United
Kingdom found that cloth masks, “even homemade masks with limited
effectiveness can dramatically reduce transmission rates if worn by
enough people, regardless of whether they show symptoms.” The study also
notes that mask-wearing will be especially important as a possible
second wave of the virus could occur in the fall.
Pennsylvania has urged mask-wearing throughout its response to the
pandemic and even as counties reach the green phase of reopening, masks
are still required when entering businesses and encouraged for use in
any space where social distancing is difficult to maintain. The state’s
business guidance outlines mask-wearing for both employees and
“Department of Health Secretary Dr. Rachel Levine has said it countless
times, ‘My mask protects you and your mask protects me,’ and that is
important for all Pennsylvanians to remember as we continue a successful
and safe reopening of the state,” Wolf said.
For more information on COVID-19 cases, visit the data dashboard at