Are You Eligible for a Third Dose?

NOTE: Only those who received the two-dose Pfizer or Moderna vaccines, are eligible to get a third dose (also known as an additional dose). If you received the Johnson & Johnson vaccine you are now eligible for a booster dose. Call you neighborhood clinic to make an appointment.

If you originally received the Pfizer or Moderna vaccine:

Has it been at least 28 days since 2nd shot?

If NO — > You are NOT YET eligible for a third dose.

If YES — > Are you moderately to severely immunocompromised:

1) Are you currently being treated for tumors or cancers of the blood?

2) Have you received an organ transplant or are you taking immunosuppressants?

3) Have you received a stem cell transplant within the last two (2) years?

4) Do you have a moderate to severe primary immunodeficiency (DiGeorge, Wiskott-Aldrich syndromes, etc.)?

5) Do you have advanced or untreated HIV infection?

6) Are you taking high doses of corticosteroids (e.g. prednisone >20mg/day) or other medications that would suppress the immune system (e.g. cancer treatment drugs, chemotherapy medications, antimetabolites (methotrexate), transplant immunosuppressants, TNF blockers (Enbrel, Humira, Remicade, Simponi, Cimzia, etc.), etc.)

If YES — > You are eligible for a third dose.

If NO — > You are NOT eligible for a third dose. See if you are eligible for a booster dose.


Take the next step.

Call your neighborhood clinic or our COVID Hotline at 503-848-5861 for help determining if you are eligible, to get more information, or to schedule a vaccine appointment. You can now get your flu shot at the same time!

Third dose FAQs

  1. Can I mix and match third-dose vaccines? If you received Pfizer or Moderna’s COVID-19 vaccine series, a third dose of the same mRNA vaccine should be used, and no more than three mRNA vaccine doses.
  2. If I am immunocompromised, do I need an additional dose AND a booster? The current recommendation is for immunocompromised people to receive an additional dose 28-days after completing an mRNA COVID-19 vaccine series. The CDC says a person should not receive more than three mRNA vaccine doses.

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