Region of Durham

Select your priority group to start your appointment booking:

Booster dose appointment

Vaccine product:
  • Ages 5 to 11 years: The bivalent Pfizer paediatric vaccine is the authorized bivalent product for individuals 5 to 11 years of age.
  • Ages 12 to 17 years: The bivalent Pfizer vaccine is the authorized bivalent product for individuals 12 to 17 years of age.
  • Ages 18+ years: There is no preference between bivalent Moderna or bivalent Pfizer as a booster dose for individuals 18 years of age and older.

Interval criteria: The recommended interval to receive a booster dose is 6 months (168 days) after the last dose or confirmed COVID-19 infection.

Dose interval calculator: Use our date calculator tool to check when you are eligible for your next COVID-19 vaccine dose.

I am eligible 168 days after my last dose.

Date check: 168 days from the date you entered is (YYYY-MM-DD). Please ensure you book your next COVID-19 vaccine appointment on or after this date.


  • Individuals five years and older who have not received a booster dose since September 1, 2022, remain recommended to receive a booster dose if it has been at least six months (168 days) since last dose.
  • Individuals in specific high-risk populations are recommended to receive a spring booster dose if at least six months (168 days) have passed since their last dose or confirmed COVID-19 infection.
    High-risk groups
    • Individuals aged 65 years and older.
    • Aged 18 and older living in congregate care setting for people with complex medical needs.
    • Residents of long-term care homes, retirement homes, elder care lodges, and other congregate living settings for seniors
    • Pregnant individuals.
    • Individuals aged 55 years and older who identify as First Nations, Inuit or Métis and their non-Indigenous household members aged 55 years and older.
    • Individuals aged 18 years and older and moderately to severely immunocompromised.

Primary series appointment

Vaccine product:
  • The Pfizer COVID-19 vaccine for infants and children 6 months to under 5 years is a three-dose primary series.
  • The Moderna COVID-19 vaccine for infants and children 6 months to under 5 years is a two-dose primary series.

Interval criteria: The recommended interval between primary series doses for this age group is 8 weeks (56 days) after the last dose and/or after symptom onset or positive test (if asymptomatic).

Primary series appointment


Interval criteria: The recommended interval between primary series doses for this age group is 8 weeks (56 days) after the last dose and/or after symptom onset or positive test (if asymptomatic).


Interval criteria: The recommended interval between primary series doses is 8 weeks (56 days) or 28 days with informed consent, after the last dose and/or after symptom onset or positive test (if asymptomatic).

Primary series appointment


Primary series interval criteria: The recommended interval between the first and second dose is 8 weeks (56 days) after the first dose and/or after symptom onset or positive test (if asymptomatic).


Interval criteria: The recommended interval between primary series doses is 8 weeks (56 days) or 28 days with informed consent, after the last dose and/or after symptom onset or positive test (if asymptomatic).

Dose interval calculator for primary series

Use our date calculator tool to check when you are eligible for your next COVID-19 vaccine dose.

I am eligible 56 days after my last dose.

Date check: 56 days from the date you entered is (YYYY-MM-DD). Please ensure you book your next COVID-19 vaccine appointment on or after this date.

Carefully review the following question:

  1. Have you ever had a serious reaction following immunization that has not been investigated by your local health unit?

    Please contact the Durham Health Connection Line at 1-800-841-2729 or 905-668-2020 prior to booking a vaccination appointment. We need to follow-up to ensure it is safe for you to receive the vaccine at our clinics.