The number of people experiencing “long COVID” is unknown, but experts estimate that millions of Americans could be affected. Could an out-of-order immune system be to blame for lingering symptoms? PRODUCTION CREDITS: Produced by: Emily Zendt Production Assistance: Christina Monnen…

One in ten people who had COVID-19 reported long-term symptoms in a new study and while they recover at home many are still unwell in need of help. READ MORE: https://gma.abc/3d98CQg Subscribe to GMA’s YouTube page: https://bit.ly/2Zq0dU5 Visit Good Morning…