Moderna Inc became the second vaccine maker likely to receive US emergency authorization.Azar told CBS "This Morning" that he and Vice President Mike Pence will speak to the nation's governors later on Monday to discuss the vaccines and which groups of people should be prioritized to get them first."With today's announcement from Moderna, we'll now have two potential COVID-19 vaccines being reviewed by US FDA for emergency use authorization," Azar tweeted.With today's announcement from Moderna, we'll now have two potential COVID-19 vaccines being reviewed by @US_FDA for emergency use authorization.