The Latest: U.S. FDA approves J&J single-shot vaccine
By The Associated PressWASHINGTON — The U.S. now has a third vaccine to prevent COVID-19. The Food and Drug Administration on Saturday cleared a Johnson & Johnson shot that works with just one dose instead of two. Health experts have anxiously awaited a one-and-done option to help speed vaccinations. The virus has already killed more than 510,000 people in the U.S. and is…



