Health experts warn that flavored e cigarettes may lead to permanent lung damage. A U.S. teenager was diagnosed with "popcorn lung" after covertly vaping for three years, resulting in a lifelong, debilitating condition. Teen blames vaping after his lung collapses CBS News A Closer Look at Vaping Associated Lung Injury: What You Can Do for Your Patients Smokers and Vapers May Be at Greater Risk for Covid 19 The New York Times