Pfizer and BioNTech submit data they say show shots are safe in 5- to 11-year-olds.

The companies said that they would submit a formal request to regulators to allow a pediatric dose of their vaccine to be administered in the United States in the coming weeks.,The companies said that they would submit a formal request to regulators to allow a pediatric dose of their vaccine to be administered in the United States in the coming weeks.

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