A new government report shows Pfizer’s COVID-19 vaccine gave children 5 and older strong protection against hospitalization and death even during the omicron surge.

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The Centers for Disease Control and Prevention released the new data Tuesday.

A day earlier, a study from New York raised the question of whether the vaccine is less effective in children ages 5 to 11, especially against milder infections.

Younger kids get a smaller dose than teens.

But CDC data from additional states don't suggest an age problem.

Vaccines generally are less effective against omicron infection but still protect against severe outcomes.

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.