
A nurse practitioner fills a syringe with the Pfizer COVID-19 vaccine at the Beaumont Health offices in Southfield, Mich., on Nov. 5.
Jeff Kowalsky/AFP via Getty Images
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Jeff Kowalsky/AFP via Getty Images

A nurse practitioner fills a syringe with the Pfizer COVID-19 vaccine at the Beaumont Health offices in Southfield, Mich., on Nov. 5.
Jeff Kowalsky/AFP via Getty Images
The Food and Drug Administration has authorized the use of a Pfizer-BioNTech booster in adolescents 12 to 15 years old.
The agency also shortened the time between the completion of primary vaccination of the Pfizer-BioNTech COVID-19 vaccine and a booster dose to five months from six.
Finally, the FDA allowed for a third dose of vaccine in immunocompromised children 5 to 11 years of age.