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The COVID Vaccines for ages 6 months and older have been approved by the CDC, and will be available by appointment only at Pediatrics at Perkins location the week of July 5th.

A COVID Vaccine Update from our Infectious Disease Specialist, Dr. Tatiana C. Saavedra

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Review of the vaccines available in the United States against COVID and their current approval:
    • Pfizer: FDA approved mRNA vaccine; 2-dose series 21 days apart for adolescents and adults ages 16 and older; EUA for children ages 5-15 using the same schedule
    • Moderna: EUA authorized by FDA; mRNA vaccine 2-dose series 28 days apart for adults ages 18 and older
    • Johnson & Johnson: EUA authorized by the FDA; viral vector vaccine as 1-dose series for adults ages 18 and older
When are additional doses of the vaccine given?
    • Can be given as a part of the primary vaccine series with the intent to augment the initial immune response.
        • Example: 3rd dose of mRNA vaccine in immunocompromised groups
    • Can be given as a booster dose after the primary series is complete with the intent to re-inforce the immune response.
When should a third dose of the mRNA vaccine be given?
    • In August 2021, the FDA and CDC recommended a 3rd dose of an mRNSA COVID-19 vaccine be given 28 days after the 2-dose series, as part of a primary series for immunocompromised groups.
Booster doses after the primary series is complete:
    • Use of an additional dose after the primary series is complete is intended to re-stimulate (boost) immunity in individuals whose immunity may have waned over time.
    • A benefit is that it may enhance protection against emerging variants.
    • As of October 20, 2021, booster doses of all 3 vaccines are available in the U.S.
    • Then the FDA authorized heterologous “mix and match” booster doses for all 3 vaccines:
        • Single booster of Pfizer or Moderna at least 6 months after completion of the primary series.
        • Single dose of Johnson & Johnson at least 2 months after completion of the single dose for ages 18 and older.
On October 21, 2021 an updated statement from the CDC was released:
    • Individuals receiving either the Pfizer or Moderna vaccine, the following groups are eligible for a booster shot after 6 months of completion of your primary series:
        • Ages 65 or older
        • Ages 18 or older living in a long term care facility
        • Ages 18 or older with an underlying medical condition
        • Ages 18 or older that work or live in a high risk setting
    • Individuals receiving the Johnson & Johnson vaccine, booster shot is recommended for those 18 or older who were vaccinated 2 or more months ago.
What does heterologous “mix and match” mean?
    • You can mix or match which vaccine (either mRNA or vector) you receive as a booster

Vaccine Schedule Age 3rd dose Booster
 

Pfizer

 

2-dose, 21 days apart

Age 5-16 under EUA;

FDA-Approved ages 16 and older

28 days after series, same vaccine; immunocompromised only 6 months after series, can be different vaccine: Pfizer, Moderna, or J&J
 

Moderna

 

2-dose, 28 days apart

 

Age 18 and older under EUA

28 days after series, same vaccine, immunocompromised only 6 months after series, can be different vaccine: Pfizer, Moderna, or J&J
 

Johnson & Johnson (J&J)

 

One-dose

 

Age 18 and older under EUA

 

Not indicated

2 months after series, can be different vaccine: Pfizer, Moderna, or J&J

For more information or to schedule your vaccine or booster shot, please click here