Pfizer's COVID-19 vaccine trial data shows long-term efficacy in adolescents

Reuters

Published Nov 22, 2021 07:18AM ET

Updated Nov 22, 2021 05:32PM ET

(Reuters) -Pfizer Inc said on Monday its COVID-19 vaccine provided strong long-term protection against the virus in a late-stage study conducted among adolescents aged 12 to 15 years.

A two-dose series of the vaccine was 100% effective against COVID-19, measured seven days through over four months after the second dose, the company said.

The long-term data will support planned submissions for full-regulatory approval of the vaccine in the age group in the United States and worldwide.