This invisible Covid-19 mitigation measure is finally getting the attention it deserves

This invisible Covid-19 mitigation measure is finally getting the attention it deserves | CNN With mask mandates virtually gone and vaccinaton rates at a standstill, there's one mitigation measure that can still make a big difference: ventilation. Amanda Sealy CNN

"The challenge for organizations that improve air quality is that it's invisible," said Joseph Allen, director of the Healthy Buildings Program at the Harvard T.H. Chan School of Public Health...