COVID-19 Vaccine

Important notice


Mass General Brigham is offering appointments for first-dose vaccine for patients 5 years and older.


We also offer COVID-19 booster shots to patients 12 years and older.

We also have community vans that offer free COVID-19 vaccines on select days and times; no appointment needed.


Vaccine availability and scheduling

  • Where can I get a COVID-19 vaccine?

    Given our successful efforts to date and the increasing rates of vaccination in the community, we have reduced the number of our vaccination clinics. We schedule first-dose vaccine for patients 5 years and older on a limited basis. Visit our scheduling website to schedule an appointment. 

    community care van

    We also have community vans that offer free COVID-19 vaccines on select days and times; no appointment needed. Please view the schedule for when we will be in your neighborhood.

    View our mobile van schedule
    In Massachusetts, you can also visit the website to find vaccine appointments near you or dial 2-1-1.

    In New Hampshire you can visit to find a location near you. Or you can search, text your zip code to 438829 or call 1-800-232-0233 to find a location.

  • Do I need a booster?

    The CDC recommends that everyone ages 12 years and older should get a booster.

  • When should I get my booster after my primary vaccine series?
    • For Pfizer and Moderna vaccine: 5 months after receiving the second dose
      • For individuals who are moderately or severely immunocompromised: Boosters should be given 5 months after receiving the third dose.
    • For the Johnson & Johnson vaccine: 2 months after receiving a single dose vaccine.

    The CDC has more information

  • Should my booster be the same vaccine I received initially, or can I “mix and match”?

    The CDC’s recommendations now allow for adults 18 years and older to receive a different booster than their original vaccine. On December 16, 2021 the CDC released new guidance, which notes that mRNA vaccines (i.e., Moderna and Pfizer) are now preferred over Johnson & Johnson vaccine for the booster.

    For children and teens ages 12-17, only Pfizer is approved for both primary vaccination and booster.

  • I received the Johnson & Johnson vaccine and booster. Do I need to get an additional dose of mRNA vaccine (i.e., Moderna or Pfizer vaccine)?

    No. If you received the single-dose Johnson & Johnson vaccine and the Johnson & Johnson booster, you do not need to receive any additional dose of COVID-19 vaccine right now.

  • I got my first two doses at a location outside of Mass General Brigham. Can I get my next dose (third dose or booster) at Mass General Brigham?

    If you received your first and second vaccine doses outside of Mass General Brigham, you can get your third dose or booster at a Mass General Brigham vaccine site. Visit our scheduling website to schedule an appointment. Please bring your vaccine card to your appointment.

  • What is the difference between a third dose and a booster?

    A booster shot and a third dose are not the same. A third dose is recommended for people who received either Pfizer or Moderna vaccines and have compromised immune systems. It is recommended that patients with compromised immune systems receive a third dose to increase their level of protection from the virus. This third dose completes these patients’ primary vaccine series.

    A booster is an extra dose of vaccine meant to boost a patient’s immune system because of decreased immunity over time.

  • Do I need a third dose of the Pfizer or Moderna vaccine?

    The CDC now recommends a third dose for certain people who got the Pfizer or Moderna COVID-19 vaccine to complete their initial series of 2 doses.

    People age 5 and older who are moderately to severely immunocompromised should get another dose. These are people who:

    • Are actively being treated for cancer
    • Have received a solid organ transplant and are taking medicine to suppress the immune system
    • Have received CAR-T cell therapy
    • Have received a stem cell transplant within in the last 2 years or are taking medicine to suppress the immune system after a stem cell transplant
    • Have moderate or severe primary immunodeficiency (including all patients receiving IVIg or SCIg due to an underlying immune deficiency; patients with other underlying immune deficiencies not receiving IgG replacement can be counseled on a case-by-case basis)
    • Have advanced (generally defined as a CD4 count of less than 200 or CD4 percentage of 14 or less) or untreated HIV infection
    • Are taking high-dose corticosteroids (i.e. the equivalent of 20 or more milligrams of Prednisone a day)
    • Are getting other drugs that may suppress the immune response (i.e., tumor-necrosis blockers or other biologic agents that are immunosuppressive or immunomodulatory)

    The CDC also allows patients who are moderately to severely immunocompromised to receive a booster 5 months after their third dose of Pfizer or Moderna. Patients who received their third dose when they became available in August 2021 would not be eligible to receive a booster until January 2022 at the earliest.

  • I got my first dose at another hospital or a location outside of Mass General Brigham. Can I get my second dose with Mass General Brigham?

    No, we do not schedule second-dose appointments unless you have already received your first dose at a Mass General Brigham location. We strongly advise that patients book their second dose at the same location where they received their first dose.

    The Pfizer and Moderna vaccine each require two doses. The Johnson & Johnson (Janssen) vaccine requires only one dose.

  • How can I find out which vaccine I will be receiving at my upcoming vaccination appointment?

    The best vaccine is the one that is available to you on the day of your appointment. Mass General Brigham’s vaccine supply is provided by the state and federal government. Although we do not choose which vaccines we get in our distribution, we have primarily been administering Pfizer vaccines at our vaccination clinics. 

    Please note: Patients ages 5 to 17 will receive the Pfizer COVID-19 vaccine because it is currently authorized for this age group. 

  • I misplaced my COVID-19 vaccination card. Can I replace it?

    While we cannot replace the physical CDC vaccination card, patients who were vaccinated at a Mass General Brigham location can receive their immunization history through Patient Gateway. Patients who received their COVID-19 vaccination(s) through a Mass General Brigham provider can now access their vaccination record digitally or via a QR code through Patient Gateway.

    1. Log in to your Patient Gateway account, click on Menu, and select COVID-19 (just under My Record).

      COVID-19 vaccine information will appear if you completed your COVID-19 vaccine series (two doses of Pfizer, two doses of Moderna or one dose of J&J).
    2. From this record, you can take any of these actions:

      Click the down arrow to see vaccine information.

      Click the QR code to open a scannable QR code (if needed at a venue to verify vaccination details).

      Click Download/Export to produce a PDF of the vaccine information that can be printed or saved.
    3. The option to Export to Health Wallet is now available for both iPhone and Android users. Android users who do not see this option will need to upgrade their app to the newest version via Google Play.

    If you are not a current patient registered in Patient Gateway, you can request a hard copy of your vaccination record through Mass General Brigham’s Health Information Management (HIM) Department. You will need to complete an authorization form for release of protected health information. The completed form may be faxed or mailed, and instructions are included in top right corner of the form.

    If you were vaccinated outside of the Mass General Brigham system, you will need request a copy of your vaccination information from the original provider (e.g., CVS, Walgreens).

    The Massachusetts Department of Public Health provides additional guidance on how to replace your card.

What to expect from a COVID-19 vaccine appointment

Read frequently asked questions about what to expect when getting the COVID-19 vaccine, including information about potential side effects.

Frequently Asked Questions about what to expect from vaccination

FAQs about the vaccines

Video: Answers to the most searched questions about COVID-19 vaccines

Are COVID-19 vaccines safe? What types of vaccines are available? What should I do to protect myself from COVID-19? Daniel R. Kuritzkes, M.D., answers patients' most commonly searched questions about COVID-19 vaccines.

Where can I find more information?

View more videos from Mass General Brigham

Get up-to-date vaccine information

Vaccine emails from Patient Gateway

Patient Gateway

Patient Gateway is a convenient, secure way to manage your health and communicate with your doctor's office. We are sending regular updates about the COVID-19 vaccine to all enrolled in Patient Gateway.

What is Patient Gateway

Updated January 10, 2022