Learn about Ontario’s vaccination program to help protect us against COVID‑19.
Starting Monday, September 26, individuals aged 18 and over, as well as immunocompromised individuals aged 12 to 17, can now receive a bivalent booster dose at a recommended interval of six months (or a minimum interval of three months) since the last dose, regardless of the number of doses already received.
(To book an appointment between three and under six months since your last dose, please call the Provincial Vaccine Contact Centre at
The province is also distributing the Pfizer vaccine across Ontario for children aged six months to under five years. This is in addition to the Moderna vaccine available to the same age group.
It is recommended for infants and children to receive the same vaccine – either Pfizer or Moderna – for all doses in a primary series.
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Who can get vaccinated
Everyone aged six months and older is eligible to receive a COVID 19 vaccine.
Getting vaccinated and staying up to date with your COVID 19 vaccines is the best way to protect yourself, your loved ones and our communities from severe outcomes from COVID 19 and its variants.
If you do not have an Ontario health card, you are still eligible for the vaccine at no cost and can receive your proof of vaccine certificate.
You may use another form of identification (photo identification is required if you are aged 18 or older) to verify your name and date of birth. This can done be through a combination of identification, such as a driver’s licence, passport, a piece of registered mail, pay stub, student card, library card or government issued identification from other jurisdictions, including foreign and expired government documents.
Where to get vaccinated
Eligible individuals aged six months and older can book an appointment through:
- the COVID‑19 vaccination portal
- the Provincial Vaccine Contact Centre at
1-833-943-3900(TTY for people who are deaf, hearing-impaired or speech-impaired: 1-866-797-0007)
- public health units using their own booking system
- participating primary care providers
- participating pharmacies
- Indigenous-led vaccination clinics
- the GO-VAXX bus (for ages five and older)
- hospital clinics (for ages five and older, visit your local hospital or public health unit for booking details, if available in your region)
- mobile or pop-up clinics (for ages five and older, visit your local public health unit website for details, if available in your region)
Public health units may also offer additional options for vaccination for children aged six months to under five years old, such as walk-in clinics, which will not be on the COVID‑19 vaccination portal. For information on local options, please visit your local public health unit website.
For all vaccine doses, eligibility is defined by age. Individuals must be that age or older on the day of their vaccination.
If you identify as First Nations, Inuit or Métis, you can find information about vaccination or book an appointment to get your COVID‑19 vaccine through an Indigenous-led vaccination clinic.
|Service area||Organization||Booking options|
|Provincewide||Indigenous Primary Health Care Council||Online: find your nearest Aboriginal Health Access Centre|
|Northern Ontario||Nishnawbe Aski Nation||Online: find a list of urban community members vaccination clinics and booking information|
|Ottawa and surrounding regions||Akausivik Inuit Family Health Team|
|Ottawa||Ottawa Public Health and Wabano Centre for Aboriginal Health|
(Monday to Friday, 7:30 a.m. to 6 p.m., and
|Thunder Bay||Ontario Native Women’s Association, Mindimooyenh Vaccination Clinic|
Online: complete the online registration form
|Toronto and surrounding areas||Auduzhe, Anishnawbe Health Toronto and partnered clinics|
When you should consult your doctor before getting the vaccine
Contact your doctor or health care provider if you have questions about getting the vaccine or if the person getting vaccinated:
- is immunocompromised due to disease or treatment (to discuss optimal timing for vaccination)
- has had a severe allergic reaction after a COVID‑19 vaccination or has an allergy to a component of the COVID‑19 vaccine
Read the Canadian Immunization Guide for more information.
Eligibility for vaccines is based on age and risk.
Ages six months to under five years
Infants and children aged six months to under five years are eligible for a primary series only. A booster dose is not approved for this age group.
It is recommended for infants and children to receive the same vaccine – either Pfizer or Moderna – for all doses in a primary series.
Ages five and older
Individuals aged five and older can receive their primary series, followed by a booster dose, at a recommended interval of six months, or a minimum of three months since their last dose.
Eligibility and booking for booster doses are based on the interval since your last dose. Eligible individuals who have completed their primary series may receive a booster dose at a recommended interval of six months (or a minimum interval of three months) since their last dose, regardless of the number of booster doses they have already received.
Individuals who are immunocompromised
Individuals over six months of age and who are immunocompromised should get three doses of the COVID-19 vaccine as part of their primary series.
Following their three-dose primary series, eligible immunocompromised individuals:
- aged five to 11 should receive a booster dose with an original COVID-19 vaccine at a recommended interval of three months since their last dose
- aged 12 years and older should receive a bivalent COVID-19 booster dose at a recommended interval of three months since their last dose
Individuals should speak to their health care provider to discuss optimal dose intervals.
Who is considered immunocompromised
You might be eligible as someone who is immunocompromised if you are:
- a transplant recipient (including solid organ transplant and hematopoietic stem cell transplants)
- receiving stable, active treatment (chemotherapy, targeted therapies, immunotherapy) for a malignant hematologic disorder or solid tumor
- in receipt of chimeric antigen receptor (CAR)-T-cell
- an individual with moderate or severe primary immunodeficiency (for example, DiGeorge syndrome, Wiskott-Aldrich syndrome)
- in Stage 3 or advanced untreated HIV infection and those with acquired immunodeficiency syndrome
- 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 or are taking specific immunosuppressant medications (PDF)
- receiving dialysis (hemodialysis or peritoneal dialysis)
Contact your health care provider if you have received a hematopoietic stem cell transplant, hematopoietic cell transplant (autologous or allogeneic) or have had CAR-T cell therapy after your COVID‑19 vaccination. You may be recommended to be re-vaccinated due to loss of immunity following therapy or transplant.
COVID‑19 vaccination includes primary series and booster doses.
A primary series is the initial number of doses of a COVID‑19 vaccine that a person needs to develop a strong initial immune response. Most people need two doses of an mRNA vaccine (Pfizer, Moderna) or Novavax (for those over 18 years of age) to complete their primary series. If you are immunocompromised, you may need a three-dose primary series.
Each dose in a primary series should be given at an interval of eight weeks between doses.
Booster doses are doses of a COVID‑19 vaccine received after the primary series. Protection after a primary series may decrease over time, especially against new variants. Booster doses help keep you protected from severe outcomes from the virus.
Eligibility for booster doses is based on the interval since your last dose. Once you have completed your primary series, individuals aged five and older can receive a booster dose at a recommended interval of six months, or a minimum interval of three months, since your last dose.
The recommended intervals between doses above are in accordance with National Advisory Committee on Immunization (NACI) recommendations. They are based on evidence that suggests longer intervals between doses result in a stronger immune response and higher vaccine effectiveness that is expected to last longer. These intervals may also be associated with a lower risk of myocarditis and/or pericarditis and may also result in a better response after the next dose.
Bivalent vaccines are vaccines that target two different viruses or two strains of the same virus. The bivalent COVID-19 vaccine is an updated version of the COVID-19 vaccine that targets the original COVID-19 virus and the Omicron variant, which is currently the dominant variant in circulation in Ontario. Bivalent vaccines are now being administered as booster doses to eligible individuals.
Bivalent vaccines are formulated to better protect against the currently circulating COVID-19 variants. They can also help restore protection that has decreased since previous vaccination.
All Ontarians aged 18 and over are encouraged to stay up to date with their vaccinations and get a bivalent booster dose at a recommended interval of six months after their last dose, as evidence shows that vaccine protection decreases over time.
When you should get a bivalent vaccine
The bivalent vaccine is only offered as a booster dose. This means that you must have completed your primary series to receive it.
Once you are eligible, no matter how many doses you have already had, you should get your bivalent booster dose at a recommended interval of six months, or a minimum interval of three months, after your last dose.
Individuals at high risk for severe COVID-19 illness are recommended to get a bivalent booster dose after the minimum three-month interval and after consultation with your health care provider, to ensure the best possible protection ahead of the respiratory season. This includes those who are:
- aged 65 and older
- a First Nations, Inuit and Métis individual or a non-Indigenous household member, aged 18 and older
- a resident of a long-term care home, retirement home or Elder Care Lodge
- an individual living in other congregate settings that provide assisted living and health services
- individuals aged 12 and over with an underlying medical condition that places them at high risk of severe COVID-19;
- For adolescents 12-17 years of age with moderately to severely immunocompromising conditions and/or who have biological or social risk factors that place them at high risk of severe outcomes from COVID-19, a booster dose of the bivalent Moderna COVID-19 vaccine may be offered off-label based on clinical discretion
- pregnant, aged 18 and older
- health care workers, aged 18 and older
Individuals who are immunocompromised can book an appointment to receive the bivalent booster dose at a three-month interval, after consultation with your health care provider, through the COVID19 vaccination portal.
All other eligible individuals should get a bivalent booster dose at the recommended interval of six months since their last dose and/or following a COVID-19 infection as evidence shows that longer intervals may provide a stronger and longer lasting immune response.
How to book a bivalent vaccine
Individuals can book a bivalent booster dose appointment through all available channels. Individuals are encouraged to keep checking booking sites as new appointments continue to be added.
If you’ve had COVID‑19
If you’ve already had COVID‑19, you should still be vaccinated for protection from reinfection or severe outcomes. While infection alone provides some protection, vaccination combined with infection helps further improve the immune response.
Even if you’ve recovered from COVID‑19, you are not immune and can still get the virus, be contagious while not showing any symptoms, and spread it to others in your community.
If you have had COVID-19, you should wait the following intervals after symptom onset or a positive test before receiving your next dose:
- If completing your primary series:
- two months (56 days) if you are not immunocompromised and have no history of multisystem inflammatory syndrome in children (MIS-C)
- one to two months (28 – 56 days) if you are immunocompromised but have no history of MIS-C
- if you have a history of MIS-C, until clinical recovery has been achieved or up to 90 days since the onset, whichever is longer, regardless of immunocompromised status
- If getting a booster dose:
- at least three months (84 days); however, six months (168 days) may provide better immune response
Discuss the best timing for you with a health care provider. It can depend on whether your next dose is part of your primary series or a booster dose and on your health status.
If you were vaccinated out of Ontario
If you received a COVID‑19 vaccine outside of Ontario or Canada, you should register your vaccination(s) by contacting your local public health unit.
You must provide proof, such as an immunization record, to your public health unit to be registered. The public health unit may ask for additional proof of vaccination, such as clinic or pharmacy information or travel documents such as a boarding pass.
If you applied to have your out of province vaccination(s) registered with your public health unit and are waiting to have it registered, you can call the Provincial Vaccine Contact Centre at
- you have an Ontario health card or COVID ID (a unique number assigned to you by your public health unit in place of an Ontario health card number)
- your public health unit uses the provincial booking system
- you can bring your out of province vaccination receipts to your vaccination appointment for validation
You had a vaccine not authorized by Health Canada
If you received a COVID‑19 vaccine not authorized by Health Canada, please contact your public health unit to find out if you need additional doses to complete your primary series.
For more information, read the recommendations for people vaccinated with vaccines not authorized by Health Canada.
If you received a Health Canada authorized vaccine, you only need to provide proof of vaccination to your public health unit. No other action is needed.
Why you should register your vaccination
If you get any COVID‑19 vaccines outside of Ontario, you should register them so you can:
- book additional doses in Ontario
- be contacted if there is any clinical guidance about the vaccine you got
- get an Ontario vaccination certificate with QR code
Only vaccines that Health Canada has approved and determined to be safe and effective will be administered in Ontario.
All vaccine options:
- are safe and available in Ontario
- can be safely mixed for individuals aged five and older
- provide strong protection against severe illness from COVID‑19 and its variants
Vaccines authorized include:
- mRNA vaccines:
- Pfizer – available for ages six months and older
- primary series (original vaccine): recommended for individuals ages five to 29 years to reduce possible risk of myocarditis/pericarditis
- booster doses (original vaccine): the only Health Canada approved vaccine for individuals aged five to 11 years
- booster doses (bivalent vaccine): not yet Health Canada authorized
- Moderna – available for ages six months and older
- primary series (original vaccine)
- booster doses (bivalent vaccine): recommended for individuals aged 18 years and older, as well as those aged 12 to 17 years who are immunocompromised
- Pfizer – available for ages six months and older
- protein-based vaccines:
- Novavax – available for ages 18 years and older and available upon request, or if you have an allergy or contraindication to mRNA vaccines (Pfizer or Moderna), with requests made through your public health unit, health care provider or participating pharmacy
- virus-like particle vaccines:
- Medicago – authorized for ages 18 to 64 years (not available for administration in Ontario)
- viral vector-based vaccines:
- AstraZeneca – authorized for ages 18 and older (no longer available in Ontario)
- Janssen (Johnson & Johnson) – available for ages 18 years and older – available if you have an allergy or contraindication to all other vaccines (Pfizer, Moderna and Novavax), with requests made through your public health unit, health care provider or local participating pharmacy; only one dose is required, with a booster shot recommended after three months
Vaccines for children and youth
Vaccines are safe, effective, and are the best way to stay protected from COVID‑19 and its variants. They are an important tool to help prevent serious illness and support the overall health and wellbeing of our children and communities.
Health Canada has approved COVID‑19 vaccines for use in children aged six months and older and determined that these vaccines:
- are safe, effective and manufactured with rigorous quality control and assurance
- show a strong immune response and prepare the immune system to fight against COVID‑19 and its variants
- significantly decrease the risk of severe outcomes from COVID‑19 infection
- significantly decrease the risk of longer-term illness from multisystem inflammatory syndrome in children (MIS-C), a rare but serious condition that can occur in the weeks following COVID‑19 infection
It will not interfere with getting other vaccines
Children and youth who are not up to date on other vaccines can still receive a COVID‑19 vaccine.
If your child is behind on immunizations, we encourage you to contact their health care provider to get up to date.
Children between six months and under five years should wait 14 days before or after the administration of another non-COVID-19 vaccine before getting their COVID‑19 vaccine. Parents and caregivers should discuss vaccination with their health care provider to determine the best timing and approach for COVID‑19 vaccination.
Learn more about vaccines for children at school.
Get general vaccine information
It’s okay to still have questions about the vaccine. If you do, you can:
- talk to your child’s family doctor, paediatrician or nurse practitioner
- contact the Provincial Vaccine Contact Centre to speak to an agent or health specialist at
1-833-943-3900(TTY for people who are deaf, hearing-impaired or speech-impaired: 1-866-797-0007), available in more than 300 languages, seven days a week from 8:00 a.m. to 8:00 p.m.
- book a confidential appointment with a registered nurse through the SickKids COVID‑19 Vaccine Consult Service at www.sickkids.ca/vaccineconsult or
1-888-304-6558(appointments are available in multiple languages)
- book a phone appointment with the VaxFacts Clinic to speak with a trusted physician from the Scarborough Health Network at www.shn.ca/vaxfacts or
416-438-2911ext. 5738 (available in over 200 languages)
- learn more from SickKids about COVID‑19 vaccines for children and youth
- download our fact sheet on COVID‑19 Vaccines for Children and Youth
- contact your local public health unit
Help with the COVID‑19 vaccination portal or obtaining proof of vaccination
For help with booking an appointment using the COVID‑19 vaccination portal or obtaining proof of vaccination, call the Provincial Vaccine Contact Centre at
Help over the phone is available 8 a.m. to 8 p.m., 7 days a week. You can get information in more than 300 languages.