Pfizer Covid-19 Vaccine 100% Effective in Study of 12- to 15-Year-Olds, Company Says

The Covid-19 vaccine from Pfizer Inc. and BioNTech SE safely protects kids 12 years and older, the companies said, results likely to lead to inoculating the children before the next school year.

The vaccine was 100% effective in protecting against symptomatic disease in a study of more than 2,200 children, the companies said Wednesday.

Researchers also didn’t find any safety concerns, Pfizer and BioNTech said.

Given the results, Pfizer said it would ask U.S. health regulators in the coming weeks to expand use of the shots to 12- to 15-year-olds.

The timetable for authorization in the U.S. could mean the children will be able to be vaccinated before the next school year begins in the fall.

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