Pfizer says trial showed its COVID-19 vaccine was 100 percent effective in adolescents

Pfizer and BioNTech vaccine
(Image credit: Getty Images)

The COVID-19 vaccine from Pfizer and BioNTech was 100 percent effective in adolescents aged 12 to 15 in a phase 3 study, the companies announced.

Pfizer and BioNTech said Wednesday that the vaccine, which is currently in use in the United States for adults, demonstrated 100 percent efficacy in the trial. It also demonstrated "robust antibody responses, exceeding those recorded earlier in vaccinated participants aged 16 to 25 years old, and was well tolerated."

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