Booster/Additional Dose Information

Why should I get a booster?

With all vaccines, immunity lessens as time goes on. Months after receiving your second dose of vaccine, your immunity may not be as effective in preventing disease. 

Be getting the booster, your immunity can stay strong and protect against the Omicron variant and potential future variants. 

Who can get a booster?

The CDC and FDA have recommended everyone over the age of 5 get a booster.

When should I receive my booster dose?

You should receive your booster 5 months after getting your second dose of Pfizer or Moderna or two months after receiving a dose of Johnson & Johnson. 

When can I receive a second booster dose? 

People over the age of 50 are now eligible to receive a second booster of COVID-19 vaccine at least four months after receiving a first booster shot. The FDA’s authorization specifies the second booster must be one of the mRNA vaccines (Pfizer or Moderna).

People ages 18–49 years who are not moderately or severely immunocompromised and who received Johnson & Johnson COVID-19 Vaccine as both their primary series dose and booster dose may receive a second booster dose using an mRNA COVID-19 vaccine at least 4 months after the first Johnson & Johnson booster dose

Additional Dose Information for Individuals with Weakened Immune Systems

Who is this for?

People 5+ with certain conditions and treatments (examples below). 

What other eligibility criteria?

Two doses of Pfizer or Moderna with the second dose at least 28 days prior to the additional dose, or a single dose of Johnson & Johnson 28 days prior to the additional dose. 

People who can receive an additional dose have one or more of the following conditions or treatments: 

The conditions do not include those who are pregnant, residents of adult care homes, or those with chronic medical conditions such as diabetes and COPD unless they have a condition or treatment listed above.

Booster Doses

Summary schedule of when additional doses and booster doses can be administered shown below:

Primary Vaccination Age Group Number of Primary and/or Additional Vaccine Doses Number of Booster Doses Interval Between 1st and 2nd Dose Interval Between 2nd and 3rd Dose Interval Between 3rd and 4th Dose Interval Between 4th and 5th Dose
Pfizer 6 months - years 3 N/A 3 weeks ≥8 weeks N/A N/A
Pfizer 5-11 years 3 1 21 days ≥28 days ≥3 months N/A
Pfizer ≥12 years 3 2 21 days ≥28 days ≥3 months ≥4 months
Moderna 6 months -11 years 3 N/A 4 weeks ≥4 weeks N/A N/A
Moderna 12 - 17 years 3 N/A 4 weeks ≥4 weeks N/A N/A
Moderna ≥18 years 3 2 28 days ≥28 days  ≥3 months ≥4 months
Johnson & Johnson ≥18 years 1 J&J, followed by 1 mRNA 1 ≥28 days ≥2 months N/A N/A