Pfizer BioNTechThe FDA has authorized the COVID-19 vaccine from Pfizer (NYSE:PFE) and BioNTech (NSDQ:BNTX) for adolescents as young as 12. The agency had previously authorized the vaccine for people 16 and older in December 2020.

The FDA came to its decision after Pfizer demonstrated in a Phase 3 trial that the vaccine showed 100% efficacy in preventing symptomatic COVID-19. The vaccine also had favorable reactogenicity in 12- to 15-year-olds in the study involving 2,260 participants.

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