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Get the Latest Information on COVID-19 Vaccine Booster Doses and Third Doses

Oct 2021 Vaccine Booster and Third Dose

On Monday, October 25, 2021 the CDC published an update to the Interim Clinical Considerations for Use of COVID-19 Vaccines with a focus on Booster Dose. Below are answers to commonly asked questions.

 

Vaccine Boosters and Third Doses

No. Booster doses are not permitted for people under 18 years of age.

No. Third doses are not permitted for people under 12 years of age.

Everyone Ages 18 and Older Can Get a Booster Shot

The following should get a COVID-19 vaccine booster dose at least 6 months or more after their second dose of mRNA vaccine:

You may get a booster if you are:

  • Ages 18 years and older

Which booster should you get?
Any of the COVID-19 vaccines authorized in the United States

Everyone Ages 18 and Older Can Get a Booster Shot

The following should get a COVID-19 vaccine booster dose at least 2 months or more after their initial dose of J&J/Janssen vaccine:

  • People aged 18 years and older

Which booster should you get?
Any of the COVID-19 vaccines authorized in the United States can be used for the booster dose.

All currently available COVID-19 vaccine series (one shot of J&J/Janssen or two shots of Pfizer or Moderna) continue to offer strong protection against severe COVID-19 disease. Recent studies have shown that protection against the virus may decrease over time, particularly in certain populations, such as the elderly. In order to increase protection to those most vulnerable, a booster dose was recommended for certain higher risk groups.

  • Additional dose after a primary series: An additional dose of vaccine is administered when the immune response following a primary vaccine series is likely to be insufficient. For example, a third dose of COVID-19 mRNA vaccine for certain immunocompromised patients.
  • Booster dose: Initial immune response to a primary vaccine series is thought to be adequate (for example, in immunocompetent individuals). But an additional dose of vaccine is administered when the initial immune response to a primary series is likely to have waned over time.

Yes. To date, the side effects reported after a booster dose for all US-authorized COVID-19 vaccines seem to be similar to what people experienced after receiving doses 1 and/or 2. Pain at the injection site was the most commonly reported side effect. Most symptoms were mild to moderate and resolved within 3 days.

No. Pfizer or Moderna recipients who are severely immunocompromised should have already received a third dose of Pfizer or Moderna COVID-19 vaccine at least 28 days or more from their second dose of Pfizer COVID-19 Vaccine. If you have not done so, you should do so now. An additional booster dose after that third will not be due until 6 months after your third dose.

If you received Pfizer as your initial series, you should get a third dose of the same dosage at least 28 days after your second dose. If you received Moderna as your initial series, you should get a third dose of the same dosage (not the booster half-dose) at least 29 days after your second dose. If you received the J&J/Janssen vaccine initially, you should get your booster dose at least 2 months after your first shot.

While the booster dose of the vaccine may provide added protection, it is still recommended that you continue to follow state and local guidance as it relates to wearing a mask, maintaining social distance, hand hygiene, etc.

Lowell General Hospital is offering FIRST DOSE Pfizer COVID-19 vaccinations only at our Chest and Immunization Center located at the Lowell General Hospital Saints campus. We are not offering booster doses to the public at this time, but these are widely available at local pharmacies. You can check https://vaxfinder.mass.gov/ to find a vaccine clinic more convenient to you.

No. You do not need a doctor’s note to receive a booster dose. You may be required to attest that you meet eligibility criteria to receive a booster.

We encourage you to bring your original vaccine card or documentation but it is not a requirement.

Yes. It is okay to get the influenza vaccine with any other recommended vaccines, including the COVID-19 vaccine.

At this time, the CDC has no specific recommendations for this particular clinical scenario due to lack of data. But they are collecting data as quickly as possible to be able to answer this question with more certainty. That being said, we know that overall the likelihood of re-infection after being infected with COVID-19 is low and it becomes even lower if you were fully vaccinated prior to being infected. This is because it is likely that the infection acts as a natural “booster” of your immune system, hence further prolonging protection against re-infection. We also know that to date there has been no reports of re-infections in individuals who were fully vaccinated and then developed breakthrough COVID-19 infection. Based on this it is reasonable to wait at least 90 days after COVID-19 breakthrough infection and/or until more data becomes available.

The FDA and CDC now allow for the receipt of any brand of vaccine as a booster for those who are eligible, regardless of the brand of the primary series. There are no clinical trial data to inform which combination is most effective.

  • Women under 50 requesting a booster dose of J&J/Janssen should be counseled about the risk of TTS and offered mRNA vaccine. They may choose to proceed with J&J/Janssen.
  • Men under 30 requesting a booster dose of mRNA vaccine should be counseled about the risk of myocarditis and offered J&J/Janssen vaccine. They may choose to proceed with mRNA vaccine.

A mix-and-match approach is only approved for the booster dose. Second doses of mRNA vaccine should be the same brand as the first. Third doses for the immunocompromised should be the same dose as the first.

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