Routine milestones
These are routine milestones, not a catch-up prescription. Public funding has eligibility rules. Book from age 4 for preschool boosters and from age 14 for the teen booster.
Birth to under 2 months
No universal routine vaccine visit before 2 months for most healthy infants.
Plan the 2-month visit and ask about seasonal RSV protection. If the person giving birth has hepatitis B, the baby needs protection at birth; the care team should arrange it. Hepatitis B at birth
2 months
Three vaccines: two injections and one oral vaccine. Rotavirus has strict age limits.
4 months
The next doses of the infant series.
6 months
Flu and COVID-19 vaccination also become relevant from 6 months through Ontario’s seasonal programs.
12 months
Meningococcal conjugate vaccine is given at this visit. Ask the clinic to confirm the product and record it.
15 months
The first routine chickenpox dose.
18 months
A booster to reinforce protection from the infant series.
4–6 years
Book from age 4 and review the record before school starts.
Grade 7
Usually offered through public health school clinics. Grade, not a single age, determines this routine program.
14–16 years
Book from age 14; a provider checks earlier doses and timing.
Seasonal protection
- Flu vaccine: every fall from 6 months. Some children need two doses in their first season.
- COVID-19 vaccine: Ontario’s fall program starts at 6 months; dose plans and spring eligibility vary.
- RSV protection: for eligible babies and some higher-risk children; confirm the current season’s criteria.
Fall 2026: Ontario’s flu and COVID-19 programs start with priority groups, including children aged 6 months to 4 years. General access begins October 26. Confirm local appointments with your provider or public health unit. Ontario’s 2026–2027 seasonal program
When the plan may be different
Missed doses, vaccines received elsewhere, pregnancy, an immune-system condition, serious allergies, travel or an outbreak need individual review. Newborn hepatitis B exposure needs protection at birth. Do not wait for a routine milestone after a possible exposure.
Which vaccines are required for school?
A recommended vaccine, a publicly funded vaccine and a school-required vaccine are different things. HPV and hepatitis B are offered at school but are not required for attendance under Ontario’s school vaccination law.
Sources and references (8)
- Ontario — routine immunization schedule
- Public Health Agency of Canada — provincial childhood schedules (July 2026)
- Ontario — vaccines for children at school
- Ontario — current COVID-19 vaccination program
- Ontario — Universal Influenza Immunization Program
- Ontario — RSV prevention programs
- Canadian Immunization Guide — hepatitis B protection at birth
- Ottawa Public Health — Ontario 2026–2027 respiratory immunization programs
Program details can change. How this guide is reviewed