TEST - Insert Vaccine Schedules

Seattle Children’s is providing COVID-19 vaccination services to all members of our community and our patients and their caregivers. We are only administering the Pfizer BioNTech COVID-19 vaccine and are not currently offering any other vaccines. 

The Pfizer BioNTech COVID-19 vaccine is:

  • Approved for people 5 to 15 years old for first and second doses under an Emergency Use Authorization
  • Approved for people 16 years and older for first and second doses with full FDA approval
  • Approved as a third dose for people 5 years and older who are moderately to severely immunocompromised under an Emergency Use Authorization
  • Approved for people 12 years and older for booster doses under an Emergency Use Authorization

First and Second Doses

Seattle Children’s provides first and second doses of the Pfizer COVID-19 vaccine to people ages 5 and above.

  • It is recommended that the second dose be given 21 days after the first dose and no later than 6 weeks after the first dose.
  • If you received your first dose at Seattle Children’s, your second dose appointment is automatically scheduled for you through our scheduling system for 3 weeks after you receive the first dose.

Please note: Seattle Children’s is not scheduling vaccine appointments for patients under 5 years old at this time. We will update our website when we are able to provide vaccinations to children under 5 years old. This will occur once the FDA and CDC have approved the vaccine for use in that age group and once we have a supply of the vaccines available.

Second Doses Only

Seattle Children’s can provide a second dose for people who received their first dose at another location.

Third Dose

Seattle Children’s provides a third dose of the Pfizer COVID-19 vaccine to qualifying people ages 5 and above who are moderately or severely immunocompromised and who had a second Pfizer vaccine dose at least 28 days ago.

To qualify for the third dose of the vaccine, you must meet 1 of the following criteria as set forth by the Centers for Disease Control and Prevention (CDC). Your primary care provider may also recommend that you receive the third dose because you are considered moderately or severely immunocompromised.

  • You are undergoing active cancer treatment for tumors or cancers of the blood.
  • You received an organ transplant and are taking medicine to suppress the immune system.
  • You received a stem cell transplant within the last 2 years or are taking medicine to suppress the immune system.
  • You have a moderate or severe primary immunodeficiency disorder (includes conditions like DiGeorge syndrome or Wiskott–Aldrich syndrome).
  • You have advanced or untreated HIV infection.
  • You are taking high-dose corticosteroids or other medicines that may suppress your immune response.

Note: You will not be required to show proof that you are moderately or severely immunocompromised at the time of the vaccination.

Booster Dose for People Who Had a Pfizer Vaccine

Seattle Children's provides a booster dose of the Pfizer COVID-19 vaccine to people who are 12 years and older who have:

  • Received two doses of the Pfizer vaccine at least 5 months ago

Booster Dose for People Who Had the Moderna or Janssen (Johnson & Johnson) Vaccine

Seattle Children’s provides a booster dose of the Pfizer COVID-19 vaccine to people who are 18 years and older who have:

  • Received 2 doses of the Moderna COVID-19 vaccine at least 5 months ago; or
  • Received a single dose of the Janssen (Johnson & Johnson) vaccine at least 2 months ago.

Scheduling Your Vaccine Appointment

Main Campus: Seattle

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South Clinic: Federal Way

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Third Dose




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  • We have appointments available from 7:30 a.m. to 4:30 p.m. Monday through Saturday. We do not offer walk-in vaccinations. Please do not come to the hospital or any of our locations for a vaccine if you do not have an appointment.
  • At the time of your vaccine, we will ask some screening questions to confirm this is the right time for you or your child to receive the vaccine.
    • Talk to your primary healthcare provider about any questions or concerns related to the vaccine and your medical needs. Vaccine clinic staff will not be able to advise you if any underlying health conditions could stop you from receiving the vaccine or should be considered before you receive it.
  • You may use Seattle Children’s scheduling portal to schedule an appointment.
    • The portal requires you to use Chrome, Firefox or Microsoft Edge internet browsers.
    • We will send you a confirmation email when your vaccine appointment for your dose is successfully booked.
      • After that, we will send you instructions on how to open a MyChart account through Seattle Children’s. You can also sign up here.
    • Your second dose appointment will be automatically scheduled for you after you receive your first dose.
    • If you need to cancel an appointment, do so here.
  • If you are unable to find an appointment, please send an email to COVIDCommunitySupport@seattlechildrens.orgwith your full name, phone number and email. We will add you to a list of people who will be contacted when we add more appointments. Our number of appointments depends on availability of vaccines and clinic capacity.
  • You can also check the Washington State Vaccine Locatorfor other locations where vaccines are offered.

Before Your Appointment

  • Please plan to arrive no earlier than 5 minutes before your scheduled time so we can maintain the safe physical distancing of people waiting for their vaccine.
  • People who are younger than 18 must have a legal guardian present with them to sign the patient acknowledgement form/consent for care in the clinic at time of vaccination. This is required at each vaccine appointment.
  • We allow 2 parents or caregivers to accompany the patient to their vaccine appointment. Siblings of any age may not come along to the appointment.

Additional Support During Your Appointment

  • If you need additional support during your vaccine appointment, add a note to your appointment or send an email to COVIDCommunitySupport@seattlechildrens.org with your request and specific needs. We will contact you to discuss how we can support you or your child to ensure a safe and positive vaccination experience. Only with prior notice, we can offer:
    • A pre-vaccination clinic visit where you can visit our clinic and discuss your needs with a member of our team
    • A private room where we can administer the vaccine
    • Extra time to support patients with sensory or emotional needs as appropriate and within state and federal regulations
  • We encourage you to bring things like drawing materials, a notebook, games or other things to distract you or your child.

Other Resources

To learn more about the COVID-19 vaccine, visit these trusted sources of accurate information: