We all need to be wearing masks right now. KSL Newsradio's Amanda Dickson sits down with Dr. Tamara Sheffield, Medical Director of Community Health and Prevention with Intermountain Health Care, to talk about where we are with Covid-19. Is there anyone who really needs to not wear a mask for medical reason? Not really is the answer. You get plenty of oxygen through a mask. The only reason may be anxiety. Also, where are we in the development of vaccines?