Anthony Fauci is director of the National Institute of Allergy and Infectious Diseases:
"The one thing that you would not want to see with a vaccine is getting an EUA (emergency use authorization) before you have a signal of efficacy," Fauci told Reuters in a phone interview.
"One of the potential dangers if you prematurely let a vaccine out is that it would make it difficult, if not impossible, for the other vaccines to enroll people in their trial," Fauci said.
