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Middlesex-London Health Unit

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Immunization - School Age Children

Student immunization programs have been going on for many years in Ontario, safely protecting our children in schools and in the community. Infectious diseases can spread at school amongst children and adolescents who are not vaccinated. As a parent, you can keep your kids healthy with routine health care and vaccinations. Make sure your children are up-to-date according the Child and Early Years Act, 2014 (for children under the age of 4 years old in licensed child care centres) and the Immunization of School Pupil's Act (for students 4-17 in elementary and secondary schools). The Middlesex-London Health Unit screens records of children attending school to ensure they are complete. Clinics are also offered in grade 7 for three types of vaccines students are eligible for.

NOTE: Beginning in October 2021, the Middlesex-London Health Unit is holding grade 7 scheduled immunization clinics in each school in London and Middlesex County. For those in grade 8 who missed doses in the spring due to school closures, consents are still on file and they will receive their doses. If your student receives these vaccines at their doctor's office, please report these to the health unit online or by phone to update our records.


School-Age Immunization Catch-up Clinics

The Health Unit is offering secondary school students the opportunity to be immunized at School-Age Immunization Catch-up Clinics starting May 2, 2022.

Grade 7 Immunization Program

Clinics are held in elementary schools in London and Middlesex County throughout the school year.

Student Record Review

Did you receive a letter from the Health Unit? Every year the Middlesex-London Health Unit reviews records of students that attend elementary and secondary school to ensure their immunizations are up-to-date.

Mandatory Immunizations

The legislation states that the following immunizations are mandatory at specific ages for school attendance (see chart):

  • Meningococcal Disease
  • Varicella (chickenpox) - for children born in 2010 or later
  • Diphtheria
  • Tetanus
  • Pertussis (whooping cough)
  • Polio
  • Measles
  • Mumps
  • Rubella


If you have questions, please call 519-663-5317

Date of creation: February 21, 2013
Last modified on: April 20, 2022