Science Health & Safety New study finds a genetic variant may explain why some get COVID but have no symptoms 7:02am July 20, 2023 by Leila Fadel Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2023 NPR. To see more, visit https://www.npr.org. 300x250 Ad More Morning Edition Arts There's an upside to cold, snowless New England days — great skating World News Former Israeli ambassador to the U.S. discusses Israel-Hamas ceasefire by Michel Martin 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate