What is Comirnaty? Why did the name change?

Comirnaty is the new name for the Pfizer-BioNTech COVID-19 vaccine. Once a drug or other intervention receives FDA approval the manufacturer typically gives it a brand name, and Comirnaty is the brand name that Pfizer has chosen for its COVID-19 vaccine. It is the exact same vaccine as the one that was first authorized for use in December 2020, which we have come to know as the COVID-19 Pfizer vaccine, with the same high degree of safety and effectiveness.

Added August 23, 2021