Previous health care provider updates can be found here


COVID-19 Updated Guidance

Updated Directive #2 for Health Care Providers Updated Directive #6 for Vaccination Policy in Health Settings


COVID-19 Vaccine


COMIRNATY (Pfizer-BioNTech COVID-19 Vaccine) - Shelf-Life Extension

Effective January 25, 2022, COMIRNATY (the Pfizer-BioNTech COVID-19 Vaccine) is has been given a 3-month shelf-life extension to vials with orange cap and orange label border (for individuals 5 to <12 years of age). This 3-month extension applies to all vials of the Orange Cap and Orange Label Border currently in Canada.

Based on this authorization, cartons and vials of COMIRNATY (the Pfizer-BioNTech COVID-19 Vaccine) with an Orange Cap and Orange Label Border can be used up to nine (9) months from the date of the manufacture printed on the vials and cartons as long as the approved storage conditions are maintained.

Regardless of storage condition, vaccines should not be used after 9 months from the date of manufacture printed on the vial and cartons.

See for more details.


Updated Vaccine Ordering and Metrics Forms

REMINDERS: All administered doses must be entered in COVax within 48 hours of administration. Please ensure you select the correct VE when checking clients in COVax.
Please review the process for recording half-dose Moderna adjustments in COVax. For more assistance, please email or phone 1-888-333-0640.
Reminder that the COVID-19 Vaccine Storage and Handling Quick Reference Guide can be found on page 3 of the COVID-19 Vaccine Administration guidance document.


Process for Medical Exemptions for COVID-19 Vaccine

As of January 10, 2022 organizations and businesses that are under the provincial proof-of-vaccination system can no longer accept physician notes as proof of medical exemption as a QR code is needed.

To obtain an enhanced certificate with QR code, individuals who have an eligible medical exemption must ask an Ontario physician or registered nurse in the extended class to submit their exemption directly to the public health unit where the issuer’s practice is located. Medical exemptions issued outside of Ontario are not eligible for an enhanced vaccine certificate. Please see below under "Resources" for a Sample Statement of Medical Exemption COVID-19 Immunization.

Primary care providers must send medical exemptions directly to TBDHU - they will not be accepted from clients.

Providers can fax valid medical exemptions to (807) 625-4828 or email to request the secure transfer of the patient’s exemption.

Valid exemptions will be entered into COVaxON and clients will be notified by TBDHU.

See the Provincial Guidance on Medical Exemptions to COVID-19 Vaccination (January 12, 2022)
See the Sample Statement of Medical Exemption COVID-19 Immunization



Mass Immunization Clinic Walk-In Services Expanded

Starting February 3, 2022, all individuals eligible for a COVID-19 vaccine will be able to walk-in to the TBDHU Mass Immunization Clinic at the Coliseum and Heritage buildings, no appointment necessary.


Rapid Antigen Testing - Clarification

The Thunder Bay District Health Unit does NOT distribute Rapid Antigen Tests. Please do not refer clients to TBDHU to obtain a kit.

Please view the provincial government website for information on where and how Rapid Antigen Tests are available.


IPAC Recommendations for Health Care Settings from Public Health Ontario


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Thunder Bay District Health Unit · 999 Balmoral Street · Thunder Bay, On P7B 6E7 · Canada