Doctors with the Charlotte-based research for Moderna's Phase 3 COVID-19 vaccine trial are calling for more racial diversity in participants. It is an essential step in making sure the vaccine works for all."Everyone is affected by COVID-19. No one is immune to COVID-19," said Dr. Ryan Shelton, with Tryon Medical Partners, which is conducting the Charlotte trials. "For the vaccine to be the most helpful, we need to be sure that it's safe and works for everyone."Shelton said participation is lacking in important ways, and researchers are hoping more volunteers come forward to help fill the gaps."The numbers, in general, for participation for Latinx, Black Americans, American Indians, Asian -- those numbers are too low," Dr. Shelton said. Those stories and more in your Morning Rush for Tuesday, September 15, 2020.Join Wake Up Charlotte each weekday morning from 4:30 to 7 a.m. on WCNC Charlotte!SIGN UP FOR OUR MORNING NEWSLETTER: www.wcnc.com/email