National Health & Safety FDA authorizes Moderna and Johnson & Johnson boosters and 'mix and match' approach 5:53pm October 20, 2021 by Pien Huang Health Medical Treatments National Share URL copied to clipboard! Copyright 2021 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered National 'Marfa for Beginners' podcast welcomes you to the art town National A conversation with the Derby's 1st Black trainer in over 30 years 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate