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 Trump's massive spending bill & the GOP's priorities by Scott Detrow Arts Indian writer Banu Mushtaq wins International Booker Prize by Scott Detrow 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate