Moderna begins Covid vaccine trial in children, more states lift mask mandates and Covid restrictions, and Delta CEO speaks on pandemic’s impact on airline industry, future of travel.
Watch “NBC Nightly News With Lester Holt” at 6:30 p.m….
Moderna begins Covid vaccine trial in children, more states lift mask mandates and Covid restrictions, and Delta CEO speaks on pandemic’s impact on airline industry, future of travel.
Watch “NBC Nightly News With Lester Holt” at 6:30 p.m….