'Eligible people
These groups can currently get additional doses (booster shots and third doses):
- Residents with compromised immune systems ( Pfizer or Moderna recipients, at least 28 days after second dose)
- Residents age 65 and older ( Pfizer recipients only, at least six months after second dose)
- Residents age 18 and older with underlying medical conditions ( Pfizer recipients only, at least six months after second dose)
- Residents aged 18-64 years who are at increased risk for COVID-19 exposure and transmission because of occupational or institutional setting risk ( Pfizer recipients only, at least six months after second dose)
Additional doses of J&J vaccine are not yet authorized.
Available locations
Use Maryland’s vaccine locator to find pharmacies and other providers. Your healthcare provider may have vaccine, too.
Go to a location offering Pfizer. (If you are immunocompromised, you can get Pfizer or Moderna for your additional dose).
Items to bring to your appointment
Bring these items to your additional dose appointment
- your vaccination card – see how to get a copy of your record
- personal identification – see examples of identification
You will be required to self-certify underlying medical conditions and age.
You do not need a doctor’s note or medical history.
What vaccine type should I get for my additional vaccine dose?
You should get the same mRNA vaccine (Pfizer or Moderna) that you got for your first two doses. Before you go to a clinic, confirm it has the same vaccine type you already received.
| This vaccine | is available for these additional doses |
|---|---|
| Johnson & Johnson | Not yet authorized for booster or third doses |
| Moderna | Authorized only for third doses for people with compromised immune systems |
| Pfizer | Authorized for booster shots, and third doses for people with compromised immune systems |
The CDC does NOT recommend that people with a compromised immune system who have gotten a dose of the Johnson & Johnson vaccine start a new vaccination series with Pfizer or Moderna.
Are there risks of receiving an additional vaccine dose?
Limited information exists about the risks of receiving an additional dose of vaccine. Ongoing research is looking at the safety and benefit of additional doses of COVID-19 vaccines.
So far, reactions reported after a third dose of an mRNA vaccine were similar to those for first and second doses. The most common side effects reported have been fatigue and pain at the injection site. Overall, most side effects have been mild to moderate.
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