Duke researchers put masks, face coverings to the test The Citizen 6 years ago How can consumers know how much protection their face covering really offers? A new Duke University study attempts to answer that very question. Source: WRAL News Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on LinkedIn (Opens in new window) LinkedIn Share on Pinterest (Opens in new window) Pinterest Share on WhatsApp (Opens in new window) WhatsApp State workers could face another health premium hike, depending on Duke-Aetna contract fightDateSeptember 17, 2025In relation toMarshallbergDuke University lifts outdoor mask mandateDateMay 3, 2021In relation toNewsDuke heart surgeon placed on leave after indecent exposure chargeDateAugust 11, 2021In relation toNews