As of June 18, 2022, the CDC recommends that children and adolescents age 6 months and older get a Pfizer or Moderna COVID-19 vaccine, and advises children and adolescents age 5 and older who receive the Pfizer vaccine to get a booster dose at least 5 months after their second shot.

The dose and series authorized for children is informed by clinical trials on safety and effectiveness of the Pfizer and Moderna vaccine in these age groups. 

Pfizer COVID-19 Vaccine Authorization

  • Children age 6 months through 4 years old receive a three-shot series, with two doses spaced three weeks apart and followed by a third at least two months later. The dosage is one-tenth the adult dosage.
  • Children age 5 to 11 receive a two-shot series spaced three weeks apart. The dosage is one-third the adult dosage. This age group should also get a booster dose at least five months after their second shot.
  • Children age 12 to 17 receive a two-shot series spaced three weeks apart. The dosage is the same as the adult dosage. This age group should also get a booster dose at least five months after their second shot.

Moderna COVID-19 Vaccine Authorization

  • Children age 6 months through 5 years old receive a two-shot series, with two doses spaced four weeks apart. The dosage is one-quarter of the adult dosage.
  • Children age 6 to 11 receive a two-shot series, with two doses spaced four weeks apart. The dosage is half the adult dosage.
  • Children age 12 to 17 receive a two-shot series, with two doses spaced four weeks apart. The dosage is the same as the dosage for adults.

The CDC recommends that children and adolescents age 6 months to 17 years who are moderately or severely immunocompromised should receive a three-shot series of the Pfizer or Moderna vaccine. For more information on COVID-19 vaccine recommendations for immunocompromised children and adolescents, follow the CDC’s guidelines here.

Updated June 27, 2022

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