Dr. Stephen Hoge, whose Moderna vaccine is being administered across the U.S., is asking the FDA to allow the company to increase the doses that can fit in a vial to help increase rollout. LEARN MORE: What pregnant, breastfeeding people should know about COVID-19 vaccines: https://gma.abc/3oFyxD7 Subscribe to GMA's YouTube page: https://bit.ly/2Zq0dU5 Visit GMA's homepage: https://www.goodmorningamerica.com #GMA #Moderna #COVID19 #Vaccine