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Changes to the immunization schedule

Changements au calendrier de vaccination


A new immunization schedule will come into effect on June 1, 2019. The new schedule is for healthy children who were born on or after June 1, 2019.

Why change the immunization schedule?

With the current immunization schedule, parents have to make numerous appointments and some end up putting off or refusing the administration of some doses of vaccines.

Based on the latest data, Québec’s experts have concluded that the immunization schedule for healthy children could be simplified while providing the necessary protection against vaccine-preventable diseases. The new schedule reduces the number of appointments needed, which makes it easier for parents to stick to the schedule.

What changes have been made to the immunization schedule?

  • The immunization against diphtheria, pertussis (whooping cough), tetanus, hepatitis B, polio and Haemophilus influenzae type b (Hib) infections now comes in 3 doses instead of 4. This does away with the need for an immunization visit at 6 months.
  • The meningococcal C vaccine is administered at 18 months.
  • The varicella vaccine is administered at 12 and 18 months by a combined measles, rubella, mumps, and varicella vaccine.
  • A hepatitis A and B vaccine is administered at 18 months.

Learn more


Public, Children's Health, News, Whooping cough

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Last Update : 11 November 2019