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Stay Up to Date with COVID-19 Vaccines Including BoostersStay Up to Date with COVID-19 Vaccines Including Boosters

Updated Nov. 1, 2022

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What You Need to Know
Updated (bivalent) boosters became available on:

September 2, 2022, for people 12 years of age and older
October 12, 2022, for people aged 5–11

CDC recommends everyone stay up to date with COVID-19 vaccines for their age group:

Children and teens ages 6 months–17 years
Adults ages 18 years and older

Getting a COVID-19 vaccine after you recover from COVID-19 infection provides added protection against COVID-19.
If you recently had COVID-19, you may consider delaying your next vaccine dose (primary dose or booster) by 3 months from when your symptoms started or, if you had no symptoms, when you first received a positive test.
People who are moderately or severely immunocompromised have different recommendations for COVID-19 vaccines.
COVID-19 vaccine and booster recommendations may be updated as CDC continues to monitor the latest COVID-19 data.

Updated Boosters Are Recommended for Some PeopleCDC recommends that people ages 5 years and older receive one updated (bivalent) booster if it has been at least 2 months since their last COVID-19 vaccine dose, whether that was:

Their final primary series dose, or
An original (monovalent) booster

People who have gotten more than one original (monovalent) booster are also recommended to get an updated (bivalent) booster.

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 protected best from COVID-19 when you stay up to date with the recommended vaccinations, including recommended boosters.
Four COVID-19 vaccines are approved or authorized in the United States:

Pfizer-BioNTech
Moderna
Novavax
Johnson & Johnson’s Janssen (J&J/Janssen) (However, CDC recommends that the J&J/Janssen COVID-19 vaccine only be considered in certain situations, due to safety concerns.)

Updated (Bivalent) Boosters
The updated (bivalent) boosters are called “bivalent” because they protect against both the original virus that causes COVID-19 and the Omicron variant BA.4 and BA.5.
Previous boosters are called “monovalent” because they were designed to protect against the original virus that causes COVID-19. They also provide some protection against Omicron, but not as much as the updated (bivalent) boosters.
The virus that causes COVID-19 has changed over time. The different versions of the virus that have developed over time are called variants. Learn more about variants of the COVID-19 virus.
Two COVID-19 vaccine manufacturers, Pfizer and Moderna, have developed updated (bivalent) COVID-19 boosters.
When Are You Up to Date?
You are up to date with your COVID-19 vaccines if you have completed a COVID-19 vaccine primary series and received the most recent booster dose recommended for you by CDC.
COVID-19 vaccine recommendations are based on three things:

Your age
The vaccine you first received, and
The length of time since your last dose

People who are moderately or severely immunocompromised have different recommendations for COVID-19 vaccines.
You are still up to date if you receive all COVID-19 vaccine doses recommended for you and then become ill with COVID-19. You do not need to be immediately revaccinated or receive an additional booster.
For Healthcare Workers: Learn more about COVID-19 vaccine schedules.Getting Vaccines If You Had or Currently Have COVID-19
If you recently had COVID-19, you may consider delaying your next vaccine dose (whether a primary dose or booster) by 3 months from when your symptoms started or, if you had no symptoms, when you first received a positive test.
Reinfection is less likely in the weeks to months after infection. However, certain factors, such as personal risk of severe disease, or risk of disease in a loved one or close contact, local COVID-19 Community Level, and the most common COVID-19 variant currently causing illness, could be reasons to get a vaccine sooner rather than later.

Children and teens ages 6 months–17 years
COVID-19 vaccine dosage is based on age on the day of vaccination, not on size or weight. Children get a smaller dose of COVID-19 vaccine than teens and adults based on their age group.

Pfizer-BioNTech

AGE GROUP
6 MONTHS–4 YEARS
1st DosePfizer-BioNTechPRIMARY SERIES2nd DosePfizer-BioNTechPRIMARY SERIES3–8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTechPRIMARY SERIESAt least 8 weeks after 2nd dose

Up to Date: 2 weeks after 3rd dose, since a booster is not recommended for this age group at this time

More details: Staying up to date

AGE GROUP
5–11 YEARS
1st DosePfizer-BioNTechPRIMARY SERIES2nd DosePfizer-BioNTechPRIMARY SERIES3–8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTechUPDATED (BIVALENT) BOOSTERAt least 2 months after 2nd dose or last booster, children age 5 years can only get a Pfizer-BioNTech booster, and children ages 6–11 years can get a Pfizer-BioNTech or Moderna booster.

Up to Date: Immediately after you have received the most recent booster recommended for you

More details: Staying up to date

AGE GROUP
12–17 YEARS
1st DosePfizer-BioNTechPRIMARY SERIES2nd DosePfizer-BioNTechPRIMARY SERIES3–8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTech or ModernaUPDATED (BIVALENT) BOOSTERAt least 2 months after 2nd dose or last booster

Up to Date: Immediately after you have received the most recent booster recommended for you

More details: Staying up to date

Pfizer-BioNTech Vaccine Overview

Moderna

AGE GROUP
6 MONTHS–5 YEARS
1st DoseModernaPRIMARY SERIES2nd DoseModernaPRIMARY SERIES4–8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTechUPDATED (BIVALENT) BOOSTERChildren 5 years of age can get a Pfizer-BioNTech booster at least 2 months after their 2nd dose. (Children 6 months to 4 years are not recommended for a booster.)

Up to Date: Children 6 months to 4 years of age are up to date two weeks after completing the 2nd dose of their primary series. Children 5 years of age who received a Moderna primary series are up to date immediately after they have received the most recent booster recommended for them.

More details: Staying up to date

AGE GROUP
6–17 YEARS
1st DoseModernaPRIMARY SERIES2nd DoseModernaPRIMARY SERIES4–8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTech or ModernaUPDATED (BIVALENT) BOOSTERAt least 2 months after 2nd primary series dose

Up to Date: Immediately after you have received the most recent booster recommended for you

More details: Staying up to date

Moderna Vaccine Overview

Novavax

AGE GROUP
12-17 YEARS
Novavax is not authorized as a booster dose at this time.
1st DoseNovavaxPRIMARY SERIES2nd DoseNovavaxPRIMARY SERIES3-8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTech or ModernaUPDATED (BIVALENT) BOOSTERAt least 2 months after 2nd primary series dose

Up to Date: Immediately after you have received the most recent booster recommended for you

More details: Staying up to date

Novavax Vaccine Overview

Adults ages 18 years and older

Pfizer-BioNTech

AGE GROUP
18 YEARS AND OLDER
1st DosePfizer-BioNTechPRIMARY SERIES2nd DosePfizer-BioNTechPRIMARY SERIES3–8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTech or ModernaUPDATED (BIVALENT) BOOSTERAt least 2 months after 2nd primary series dose or last booster

Up to Date: Immediately after you have received the most recent booster recommended for you

More details: Staying up to date

Pfizer-BioNTech Vaccine Overview

Moderna

AGE GROUP
18 YEARS AND OLDER
1st DoseModernaPRIMARY SERIES2nd DoseModernaPRIMARY SERIES4–8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTech or ModernaUPDATED (BIVALENT) BOOSTERAt least 2 months after 2nd primary series dose or last booster

Up to Date: Immediately after you have received the most recent booster recommended for you

More details: Staying up to date

Moderna Vaccine Overview

Novavax

AGE GROUP
18 YEARS AND OLDER
1st DoseNovavaxPRIMARY SERIES2nd DoseNovavaxPRIMARY SERIES3–8 weeks after 1st dose

More details: Getting your 2nd dose
3rd DosePfizer-BioNTech or ModernaUPDATED (BIVALENT) BOOSTERAt least 2 months after 2nd primary series dose
A monovalent Novavax booster is available in limited situations

More details: Novavax booster

Up to Date: Immediately after you have received the most recent booster recommended for you

More details: Staying up to date

Novavax Vaccine Overview

Johnson and Johnson’s Janssen

AGE GROUP
18 YEARS AND OLDER
1st DoseJ&J/JanssenPRIMARY SERIES2nd DosePfizer-BioNTech or Moderna UPDATED (BIVALENT) BOOSTERAt least 2 months after 2nd primary series dose
A monovalent J&J/Janssen booster is available in limited situations.

More details: J&J/Janssen booster

Up to Date: Immediately after you have received the most recent booster recommended for you

More details: Staying up to date

J&J/Janssen Vaccine Overview

Getting your 2nd dose: Talk to your healthcare or vaccine provider about the timing for the 2nd dose in your primary series.

People ages 6 months through 64 years, and especially males ages 12 through 39 years, may consider getting the 2nd primary Pfizer-BioNTech, Moderna, or Novavax 8 weeks after the 1st dose.

A longer time between the 1st and 2nd primary doses may increase how much protection the vaccines offer, and further minimize the rare risk of myocarditis and pericarditis.

Anyone wanting protection due to high levels of community transmission, people ages 65 years and older, or people who are more likely to get very sick from COVID-19, should get the second dose of:

Pfizer-BioNTech COVID-19 vaccine 3 weeks (or 21 days) after the first dose.
Moderna COVID-19 vaccine 4 weeks (or 28 days) after the first dose.
Novavax COVID-19 vaccine 3 weeks (or 21 days) after the first dose.

Staying up to date: If you have completed your primary series, but are not yet eligible for a booster, you are also considered up to date.
Novavax booster: You may get a monovalent Novavax booster if you are unable or unwilling to receive a Pfizer or Moderna updated (bivalent) COVID-19 booster and you meet the following requirements:

You are 18 years of age or older
You completed a COVID-19 vaccine primary series at least 6 months ago
You have not gotten any other booster dose

Mixing COVID-19 Vaccine Products
Do Not Mix Primary Series
CDC does not recommend mixing products for your primary series doses. If you received Pfizer-BioNTech, Moderna, or Novavax for the first dose of your primary series, you should get the same product for all following primary series doses.
Mixing Boosters
The following information applies to boosters for people ages 5 and older. Children under age 5 years are not recommended to receive a booster at this time.

Children age 5 years old

Children age 5 years old are only currently recommended to receive the updated (bivalent) Pfizer-BioNTech booster, and they can get this booster whether they received the Pfizer-BioNTech or Moderna primary series.
Children age 5 years old can no longer get an original (monovalent) mRNA (Pfizer-BioNTech or Moderna) booster.

People ages 6 years and older

People ages 6 years and older can get a different product for their updated (bivalent) booster than they received for their primary series or last booster. People ages 6 years and older can no longer get an original (monovalent) mRNA (Pfizer-BioNTech or Moderna) booster.

To find COVID-19 vaccine locations near you: Search vaccines.gov, text your ZIP code to 438829, or call 1-800-232-0233.

Learn About Getting Your Vaccine
Do you need to wait to get vaccinated after getting COVID-19 or getting treatment for COVID-19?
How can you prepare for vaccination?
What can you expect during and after your vaccination?

Getting Your COVID-19 Vaccine

Vaccination Received Outside the United States
Specific recommendations for people vaccinated outside the United States depend on whether:

The vaccine(s) received are accepted in the United States as valid vaccinations
The primary series was completed and, if eligible, a booster dose was received

These recommendations apply only to people who are not moderately or severely immunocompromised.

COVID-19 vaccines available abroad that are accepted in the United States as valid vaccinations

Vaccines approved or authorized by the U.S. Food and Drug Administration (FDA) currently include:

Pfizer-BioNTech
Moderna
Novavax
Johnson & Johnson’s Janssen

Vaccines listed for emergency use by the World Health Organization (WHO) currently include those that are listed above and the following:

AstraZeneca/Oxford vaccine
Sinopharm
Sinovac
COVAXIN
Covovax
CanSino

If You Receive a Vaccine That is Not in the U.S. Accepted List Above

Wait at least 28 days after the last dose you received of that vaccine then start COVID-19 vaccination over with a COVID-19 vaccine that has been approved or authorized by the FDA.
If the FDA has not approved or authorized a vaccine there may be limited data available or reviewed on the safety or effectiveness of the COVID-19 vaccine.

How to Complete a Primary Series

Receive 1 dose of a single-dose accepted COVID-19 vaccine
Receive 2 doses of a 2-dose accepted COVID-19 vaccine

CDC does not recommend mixing different COVID-19 vaccines for the primary series, but CDC is aware that mixing COVID-19 vaccines for the primary series is increasingly common in many countries outside the United States. Therefore, people who receive a mixed primary series, meaning two different COVID-19 vaccines, have completed the series.
If You Started But Didn’t Complete a Primary Series

You will need to complete the primary series. If you got 1 dose of Moderna, Novavax, or Pfizer-BioNTech, it is best to get the same vaccine again to complete the primary series.

After Completing a Primary Series
If you are not yet eligible for a booster, you are considered up to date. Otherwise, stay up to date by getting the booster recommended for you as soon as a booster is recommended for you based on your age and the appropriate time has passed since completing the primary series.

Proof of vaccination card in the United States

The white CDC COVID-19 vaccination cards are issued only to people vaccinated in the United States. CDC recommends that people vaccinated outside of the United States keep their documentation of being vaccinated in another country as proof of vaccination. CDC does not keep vaccination records nor determine how vaccination records are used. People can update their records with vaccines they received while outside of the United States by:

Contacting the immunization information system (IIS) in their state.
Contacting their healthcare provider or local or state immunization program through their state’s health department.

Learn more about COVID-19 vaccination cards.
For Healthcare Workers: Learn more about the recommendations for people vaccinated outside of the United States.

For Healthcare and Public HealthUse of COVID-19 Vaccines in the United States: Interim Clinical Considerations

Last Updated Nov. 1, 2022 Source: National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases

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