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COVID-19 Vaccines for Individuals 12 and older


Third dose eligibility

To be eligible for a third (booster) dose of a COVID-19 vaccine, you must meet the following criteria:

  • At least 6 months (168 days) have passed since your second dose AND you fall into one of the following categories:
    • Born in 1951 or earlier
    • Health care worker or designated essential caregiver on file with a long-term care home or retirement home
    • Received a complete series of a viral vector vaccine (i.e. two doses of the AstraZeneca vaccine or one dose of the Janssen vaccine)
    • First Nation, Inuit and Métis adult and their non-Indigenous household members.
    • Resident of a long-term care home, retirement home, elder care lodge, or an older adult living in other congregate setting


  • At least 2 months have passed since your second dose AND you have a health condition listed below (detailed referral note from physician/specialist or current prescription required):
    • Transplant recipients (including solid organ transplant and hematopoietic stem cell transplants)
    • Patients with hematological cancers (examples include lymphoma, myeloma, leukemia) on active treatment (chemotherapy, targeted therapies, immunotherapy)
    • Recipients of an anti-CD20 agent (e.g. rituximab, ocrelizumab, ofatumumab)
    • Those undergoing active treatment for solid tumors
    • Those who are in receipt of chimeric antigen receptor (CAR)-T-cell
    • Those with moderate or severe primary immunodeficiency (e.g., DiGeorge syndrome, Wiskott-Aldrich syndrome)
    • Stage 3 or advanced untreated HIV infection and those with acquired immunodeficiency syndrome
    • Those undergoing active treatment with the following categories of immunosuppressive therapies: anti-B cell therapies (monoclonal antibodies targeting CD19, CD20 and CD22), high-dose systemic corticosteroids, alkylating agents, antimetabolites, or tumor-necrosis factor (TNF) inhibitors and other biologic agents that are significantly immunosuppressive.


                 A complete list of eligible immunosuppressive medications can be found here.

For more details about eligibility for COVID-19 vaccines, please click here.

Please confirm the date of your second dose before booking a third dose appointment to ensure the minimum interval between doses has been met. Ineligible individuals will be turned away at clinic. You can calculate the date you are eligbile to receive a third dose by entering the date of your second dose on this Dose Date Calculator.

All third doses require a booked appointment. Walk-ins will only be accepted for first or second doses for ages 12+ (pending vaccine supply) at the clinics listed below, unless otherwise noted.


Click here to book your 1st, 2nd, or 3rd dose appointment


Ensure you bring your Ontario health card or other form of photo government ID with you to your appointment.

If you are having trouble booking an appointment, you can call the Haldimand Norfolk COVID-19 Vaccine Hotline at 519-427-5903.

If there are no local clinics that work for your schedule, please visit the provincial online booking system,, or call the provincial Vaccine Booking Line at 1-833-943-3900 to find available appointments in neighbouring counties. Residents can also look up nearby participating pharmacies using the province’s lookup tool:

Important Notice: As of September 29th, 2021, the Ontario government is recommending that individuals between the ages of 18 and 24 receive the Pfizer vaccine rather than the Moderna vaccine. More details are available here.


The HNHU clinics are primarily offering Pfizer at this time. If you are seeking Moderna, please contact your family physician or one of the following pharmacies for a dose. Moderna doses can be given as first, second, or third doses to eligible individuals at any of the following pharmacies:

Caledonia Shoppers Drug Mart – Caledonia  221 Argyle St S, Caledonia, ON  N3W 1K7 905-765-5055
Dunnville Hauser’s Pharmacy – Dunnville  140 Broad St E, Dunnville, ON  N1A 1E9 905-774-7331
Cayuga IDA Pharmacy – Cayuga  18 Talbot St E, Cayuga, ON  N0A 1E0 905-772-3503
Hagersville Pharmasave – Hagersville  30 Main St N, PO Box 850, Hagersville, ON  N0A 1H0 905-768-1144
Simcoe Pharmasave – Simcoe – Norfolk St S (Clark’s)  454 Norfolk St S, Simcoe, ON  N3Y 2X3 519-426-6580
Simcoe Sobeys Pharmacy – Simcoe  438 Norfolk St S, Simcoe, ON  N3Y 2X3 519-426-6773
Tillsonburg (Southwest PHU) Zehrs Pharmacy

400 Simcoe St, Tillsonburg, ON N4G 4X1




  • Norfolk General Hospital (365 West. St., Simcoe)     8a.m.-3p.m.  Pfizer ONLY – 1st and 2nd dose walk-ins accepted until 2p.m.

    • Every weekday (Monday to Friday) from Monday, November 29th until Friday, December 17th
    • Thursday, December 23rd
  • Dunnville HNHU Office (117 Forest St. E., Dunnville)  9a.m. – 4p.m. Pfizer ONLY

    • Thursday, December 2nd
  • Vittoria Community Centre (35 Oakes Blvd., Vittoria)     9a.m.-4p.m.  Pfizer ONLY

    • Wednesday, December 1st
  • Riverside Exhibition Centre (151 Caithness St. E, Caledonia)     9:15a.m.-4p.m.  Pfizer ONLY

    • Tuesday, November 30th
    • Tuesday, December 7th    (9:15a.m. – noon only)
    • Tuesday, December 14th


Receiving Confirmation of your Appointment

After you select a clinic location, date, and appointment time on the next step of this booking tool, you should receive an email confirmation of your appointment. If you do not receive an email confirmation, please check your spam or junk folders.

Even if you do not receive an email confirmation, once you select a clinic location, date, and time and a confirmation message pops up then your appointment is booked. Please write down the location, date, and time. Do not book multiple appointments.