While the interval between first and second doses can be up to 16 weeks, Ontario will begin to offer second dose appointments at an earlier interval of four weeks or later based on availability of vaccines.
The following is an anticipated schedule for eligibility to book a second dose appointment based on confirmed supply.
- Week of May 31: individuals aged 80+
- Week of June 14: individuals aged 70+
- Week of June 28: individuals who received their first dose between the week of March 8 to April 18, on a “first-in, first-out” basis. For example, this included individuals with the highest-risk health conditions and special education workers.
- Week of July 19: individuals who received their first dose between the week of April 19 to May 9, on a “first-in, first-out” basis. For example, this included individuals aged 50 and over, as well as individuals with high-risk health conditions.
- Week of August 2: individuals who received their first dose between the week of May 10 to May 30, on a “first-in, first-out” basis. For example, this included individuals who cannot work from home and individuals who have at-risk health conditions.
- Week of August 9 to 16: individuals aged 12 to 25
- Week of August 9: individuals who received their first dose from the week of May 31 onwards on a “first-in, first out” basis, respecting the recommended intervals.
How to book your second dose?
Several different vaccination clinic options are available across Ontario’s public health regions, including mass immunization clinics, pop-up / mobile clinics, hospital clinics and pharmacy clinics. Not all clinic types are available in every region and depend on local planning done by each public health unit.
Second dose appointments can be rebooked through the provincial booking system, and through pharmacies. For public health units using the provincial booking system, visit Ontario.ca/bookvaccine to book online or call the Provincial Vaccine Booking Line number at 1-833-943-3900.
For public health units using their own booking system, visit your public health unit website for booking details.
Primary care settings and pharmacies may also be reaching out to eligible Ontarians to accelerate appointments for second doses.
Eligible individuals are encouraged to contact the pharmacy or primary care provider where they received their first dose.