Definition of “Fully Vaccinated” for COVID-19 in Ontario

Posted Wednesday October 06, 2021

Posted By: Emily Ngo

Category: General

To: Ottawa Physicians, Nurse Practitioners, Midwives, Travel Clinics and Walk-in Clinics, and Infection Control
Date: October 6, 2021
From: Dr. Trevor Arnason, Associate Medical Officer of Health

Dear Colleagues:

As many of you are aware, on September 22 2021, proof of vaccination requirements took effect across Ontario.

On September 14 2021, the Ontario Ministry of Health released guidance for the definition of fully vaccinated, which is as follows:

In Ontario, an individual is considered fully vaccinated if they have received:

  • The full series of a COVID-19 vaccine authorized by Health Canada, or any combination of such vaccines,
  • One or two doses of a COVID-19 vaccine not authorized by Health Canada, followed by one dose of a COVID-19 mRNA vaccine authorized by Health Canada, or
  • Three doses of a COVID-19 vaccine not authorized by Health Canada; and
  • They received their final dose of the COVID-19 vaccine at least 14 days ago.

This definition applies only in Ontario and is separate from federal requirements for international travel. This definition may differ from workplace requirements such as those for health care workers. Management of cases of COVID-19 by Ottawa Public Health is consistent with this new definition for fully vaccinated high risk contacts.

Along with this change in definition, on September 14, 2021, the Ontario Ministry of Health also released an update to guidance for individuals vaccinated outside of Ontario:

  • Depending on the type of vaccine your patient was previously immunized with outside Ontario, patients may need one dose of an mRNA vaccine to allow them to meet Ontario’s new fully vaccinated definition.
  • The most common non-Health Canada approved vaccines reported to Ottawa Public Health are Sinovac, Sinopharm, Sputnik V and Abdala.
  • If patients require another dose of vaccine to meet the fully vaccinated definition, and you are not immunizing in your clinic, please refer them to an OPH immunization clinic.

Thank you for your steadfast partnership in Ottawa’s COVID-19 public health response.

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