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Mask-wearing has proven to be an important deterrent to the spread of the virus.

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 customers.

“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