An influential U.S. advisory panel is recommending that all children ages 5 to 11 should get Pfizer’s pediatric COVID-19 vaccine. If the director of the Centers for Disease Control and Prevention agrees with Tuesday's vote, the U.S. will embark on a major expansion of vaccinations.

Pediatricians are getting ready to put kid-size doses into little arms as soon as they get the final OK. This could happen as early as Wednesday.

Pfizer already has begun shipping millions of doses to states, doctors’ offices, and pharmacies. The special kid shots contain just a third of the dose given to teens and adults.

This is a developing story.

Answers to 25 common COVID-19 vaccine questions

Vaccinations for COVID-19 began being administered in the U.S. on Dec. 14, 2020. The quick rollout came a little more than a year after the virus was first identified in November 2019. The impressive speed with which vaccines were developed has also left a lot of people with a lot of questions. The questions range from the practical—how will I get vaccinated?—to the scientific—how do these vaccines even work?

Keep reading to discover answers to 25 common COVID-19 vaccine questions.

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