The Food and Drug Administration (FDA) gave the green light for the Pfizer-BioNTech coronavirus vaccine to be used in adolescents 12 to 15 years old, a move that will make millions more people eligible for a vaccine.

The highly anticipated decision is a key step toward ensuring middle and high schools can operate for full in-person learning next fall — and a major boon to parents concerned about the safety of summer activities.

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The FDA has been reviewing the amended application from Pfizer and BioNTech for more than a month. The companies cited research from their clinical trial in late March that found the vaccine was effective in the younger population, and produced strong antibody responses. The side effects were also about the same as the older population.

Following the announcement, the Centers for Disease Control and Prevention vaccine advisory committee will meet to review the data, and vote on recommendations for use of the shot in adolescents.

Pfizer's vaccine is currently authorized for teenagers aged 16 and older. The other two vaccines on the market in the U.S., from Moderna and Johnson & Johnson, are only authorized for adults, but the companies are testing the shots in children. Read more at The Hill