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Booking your second dose

Details about getting your second dose of the COVID-19 vaccine.

Ontario-wide Pfizer shipment delay

As of June 21, all Peel Public Health clinics will move to offer Moderna for all vaccine appointments booked by adults 18 years or older. This temporary change will last until at least June 24. Moderna and Pfizer mRNA vaccines are interchangeable and it’s safe to mix doses.

We encourage you to keep your vaccine appointment as we cannot guarantee when Pfizer will be available as this is an Ontario-wide issue. Get more details about the Pfizer shipment delay.

When you can get your second dose depends on what vaccine you received as your first dose. Get details about how to book your first dose.

If your first dose was AstraZeneca

If you received a first dose of AstraZeneca at least 8 weeks ago you’re eligible to book or reschedule your second dose for an earlier date. It’s now recommended that you get an mRNA vaccine (Moderna or Pfizer) for your second dose. Refer to more information about the interchangeability of COVID-19 vaccines.

You can book an appointment at:

If your first dose was Pfizer or Moderna

It’s safe and effective to get either Pfizer or Moderna for your second dose since they are both mRNA vaccines. Refer to more information about the interchangeability of COVID-19 vaccines.

Who can get an earlier second dose

The following groups can book or reschedule their second dose appointment for an earlier date.

As of June 23 at 8 a.m., Peel residents who received their first dose of Pfizer or Moderna on or before May 30 will be able to book or reschedule their second dose for an earlier date.

Find out who’s eligible as high-risk health care workers or people with specific health conditions.

How to book

You can make your appointment at a Peel Public Health vaccine clinic through:

If you received your first dose at a hospital-run vaccine clinic in Peel, visit:

You can also book second dose appointments at:

Cancelling original second dose appointments

If you booked your original second appointment through Ontario's booking system, it will be automatically cancelled when you book your new earlier appointment.

If your original second dose appointment was booked through Peel’s vaccine booking system, you can cancel in the following ways:

If you booked your appointment at a hospital-run clinic, primary care provider, or pharmacy, you’ll need to confirm their cancellation process.

First doses received outside of Ontario or Canada

You'll need to bring documentation or proof of vaccination to your second dose appointment. Your vaccination details will then be entered in Ontario's system. Get more details about vaccine doses received outside of Ontario.

Other information

The goal is to get all youth 12 to 17 years of age fully vaccinated before returning to school in September. This means youth can get their second dose if there has been at least 8 weeks between doses.

Your second dose must also be Pfizer as it's currently the only COVID-19 vaccine authorized for ages 12 and older.

You can book or reschedule your second dose in the following ways:

If you received your first dose at a pop-up clinic you can also wait until Peel Public Health contacts you with information on time, date, and location of the second dose pop-up clinic.

If you already had a second dose appointment booked, it will automatically be cancelled in Ontario's vaccine booking system.

The following high-risk health care workers are included in this group.

Hospital and acute care staff in frontline roles with COVID-19 patients

This includes nurses and personal support workers and those performing aerosol-generating procedures:

  • Critical Care Units
  • Emergency Departments and Urgent Care Departments
  • COVID-19 Medical Units
  • Code Blue Teams, rapid response teams
  • General internal medicine and other specialists involved in the direct care of COVID-19 positive patients
Patient-facing health care workers involved in the COVID-19 response
  • COVID-19 Specimen Collection Centers (e.g., Assessment centers, community COVID-19 testing locations)
  • Teams supporting outbreak response (e.g., IPAC teams supporting outbreak management, inspectors in the patient environment, redeployed health care workers supporting outbreaks or staffing crisis in congregate living settings)
  • COVID-19 vaccine clinics and mobile immunization teams
  • Pharmacists administering vaccinations
  • Mobile Testing Teams
  • COVID-19 Isolation Centres
  • COVID-19 Laboratory Services
  • Current members of Ontario’s Emergency Medical Assistance Team (EMAT) who may be deployed at any time to support an emergency response
  • PHAC Quarantine Officers
  • Canada Border Services Agency Officers at Toronto Pearson Airport
Medical first responders
  • Paramedics
  • Firefighters providing medical first response as part of their regular duties
  • Police and special constables providing medical first response as part of their regular duties
Community health care workers serving specialized populations
  • Needle exchange or syringe program and supervised consumption and treatment service staff
  • Needle Exchange Program and Healthy Sexuality clinics staff
  • TransHelp drivers and contracted taxi drivers
  • Community health ambassadors and staff working in community health centres in Peel
  • Dixie-Bloor Neighbourhood Services staff
  • Indus Community Services staff
  • Punjabi Community Health Services staff
  • Roots Community Services staff
  • CMHA Peel-Dufferin staff
  • WellFort Community Health Centre staff
Indigenous health care service providers

Including but not limited to staff at:

  • Aboriginal health access centers
  • Indigenous community health centers
  • Indigenous interprofessional primary care teams
  • Indigenous nurse practitioner-led clinics
Long-term care home and retirement-home health care workers

Including nurses and personal support workers and essential caregivers

Individuals working in community health centres

Staff working at centres:

  • Serving disproportionally affected communities and communities experiencing highest burden of health, social and economic impacts from COVID-19.
  • Critical health care workers in remote and hard to access communities (e.g., sole practitioner).
Home and community care health workers

This includes nurses and personal support workers caring for:

  • Recipients of chronic home care.
  • Seniors in congregate living facilities.
  • COVID-19 patients in the community (providing hands-on care)
Other eligible workers
  • Adult Day Service program staff in Peel
  • Client-facing Local Health Integration Network and Ontario Health staff
  • Home care agency staff (private and publicly funded)

People with the following health conditions are eligible to get their second dose earlier:

  • Transplant recipients including solid organ or hematopoietic stem cell transplants.
  • Malignant hematologic disorders on immunocompromising therapy (e.g. chemotherapy, targeted therapies, immunotherapy).
  • Those who are being treated for cancer that affects your blood, bone marrow or lymph nodes (a haematological malignancy) or a malignant solid tumor.
  • Those receiving hemodialysis or peritoneal dialysis in the authorized age group (i.e. based on the product monograph: 18+ for Moderna and 16+ for Pfizer)
  • Individuals taking an anti-CD20 agent (e.g. Obinutuzumab, Ocrelizumab, Ofatumumab, riTUXimab)

People with these conditions should get a note from their doctor confirming their condition and bring it with them to their first and second dose appointment.