May 27, 2024

Children Who Got Previous COVID-19 Vaccine(s)

Children aged 6 months–4 years who got COVID-19 vaccines before September 12, 2023, should get one or two doses of updated COVID-19 vaccine depending on which vaccine and the number of doses they’ve previously received.

Recommendation for People Who May Get Additional Updated COVID-19 Vaccines

People ages 65 years and older should receive 1 additional dose of any updated (2023–2024 formula) COVID-19 vaccine (i.e., Pfizer-BioNTech, Moderna, or Novavax) at least 4 months following the previous dose of updated (2023–2024 Formula) COVID-19 vaccine.

People aged 65 years and older who have not previously received any COVID-19 vaccine doses and choose to get Novavax should get 2 doses of updated Novavax vaccine, followed by 1 additional dose of any updated 2023–2024 COVID-19 vaccine to be up to date.

When Are You Up to Date?

People aged 5 – 64 years

You are up to date when you get 1 age-appropriate updated COVID-19 vaccine.‡

Children aged 6 months – 4 years

You are up to date when you get all recommended doses, including at least 1 dose of updated COVID-19 vaccine.

People aged 65 years and older

You are up to date when you have received 2 updated 2023–2024 COVID-19 vaccine doses.

People aged 65 and older who have not previously received any COVID-19 vaccine doses and choose to get Novavax should get 2 doses of updated Novavax vaccine, followed by 1 additional dose of any updated 2023–2024 COVID-19 vaccine to be up to date.

People who got the Johnson & Johnson/Janssen COVID-19 vaccine

You are up to date when you get 1 updated COVID-19 vaccine.

About COVID-19 Vaccines

COVID-19 vaccines available in the United States are effective at protecting people from getting seriously ill, being hospitalized, and dying. As with other vaccine-preventable diseases, you are best protected from COVID-19 when you stay up to date with the recommended vaccinations.

COVID-19 vaccines currently recommended for use in the United States:

  • Updated Pfizer-BioNTech
  • Updated Moderna
  • Updated Novavax

As of October 3, 2023, the 2023-2024 updated Novavax vaccine was recommended by CDC for use in the United States.

As of September 12, 2023, the 2023–2024 updated Pfizer-BioNTech and Moderna COVID-19 vaccines were recommended by CDC for use in the United States.

The 2023–2024 updated COVID-19 vaccines more closely targets the XBB lineage of the Omicron variant and could restore protection against severe COVID-19 that may have decreased over time. We anticipate the updated vaccines will be better at fighting currently circulating variants.

There is no preferential recommendation for the use of any one COVID-19 vaccine over another when more than one licensed or authorized, recommended, and age-appropriate vaccine is available.

Getting Vaccines If You Recently Had COVID-19

If you recently had COVID-19, you still need to stay up to date with your vaccines, but you may consider delaying your vaccine by 3 months.

Reinfection is less likely in the weeks to months after infection. However, certain factors could be reasons to get a vaccine sooner rather than later, such as:

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