LOS ANGELES, March 15, 2021 – New guidelines from the U.S. Centers for Disease Control and Prevention open up the world just a bit for those fully vaccinated against COVID-19. But don’t toss away your collection of masks just yet. “This isn’t an invitation for a free-for-all,” said Michael Ben-Aderet, MD, associate medical director of Hospital Epidemiology at Cedars-Sinai. “The […]