RELATED: Pfizer starts application for full FDA approval of its COVID-19 vaccineThe FDA issued an emergency use authorization (EUA) for Pfizer’s vaccine in December 2020, which allowed the shots to be administered without full approval.Since that time, Pfizer is one of three FDA-authorized vaccines that have driven America’s case numbers down from the highs seen last winter.American multinational pharmaceutical corporation, Pfizer Inc.
logo seen outside their branch in Seoul. (Photo by Simon Shin/SOPA Images/LightRocket via Getty Images) The EUA is only valid for the duration of the emergency, which is why getting full approval is the crucial next phase in the U.S.