Disease Prevention

Covid-19 'superspreading' can still happen, but now we have the tools to slow it A recent outbreak of Covid-19 cases among officials in Washington, with dozens testing positive after attending the Gridiron Club Dinner, has put the concept of Covid-19 superspreading back in the spotlight. Jacqueline Howard, CNN CNN

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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...

Philadelphia will reinstate its indoor mask mandate as cases rise Philadelphia will reinstate its indoor mask mandate as of Monday, April 18, as cases in the city quickly rise, the city's Public Health Commissioner Dr. Cheryl Bettigole announced Monday. Elizabeth Wolfe, CNN CNN

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Their decision comes after a slew of states and major cities dropped their masking requirements as cases began trending downward in January. On March 25, Hawaii became the last state to drop its mandate...