Immunization

Immunization updates

Immunization of School Pupils Act (ISPA)

For the 2025/2026 school year, Halton Region Public Health will be enforcing Ontario’s Immunization of School Pupils Act (external link) (ISPA) for students born 2008 to 2013, and 2016 to 2018 who are missing immunization records with Public Health. Get more information on immunizations required for school attendance.

Have you received a vaccine letter from Public Health?

Halton Region Public Health has mailed letters to students born 2008 to 2013, and 2016 to 2018 who are missing immunizations records required by the Immunization of School Pupils Act (external link) (ISPA).

You may have received a letter because:

• Your child’s immunizations have not been reported to Public Health.
• Your child is missing a required vaccine.
• Your child received vaccines that do not meet the requirements of Ontario's routine immunization schedule.

Please note:

• Some vaccines, such as Influenza, Hepatitis B, and Human Papillomavirus (HPV), are recommended by the Ontario Publicly Funded Immunization Schedule but are not required under the ISPA for school attendance.
• If you have recently reported your child’s immunization record, you may still receive a letter due to processing times.
• If two to three weeks have passed since your submission, we encourage you to login to ICON to review your child’s record and make sure it includes your updates, and that there are no additional vaccines required.
• All immunization records submitted to Public Health are individually reviewed and processed by staff.
• We are currently experiencing a high volume of record submissions, and the processing time is four to five weeks.
• If you are calling 311 to speak to a Public Health Nurse, it may take up to two weeks to receive a callback.
• Students and/or parents/guardians are encouraged to login to Immunization Connect Ontario (ICON) to verify the online record has been updated, and to make sure no additional vaccines are required.

We thank you for your patience during this time.

Report or view immunization records

You can report your immunizations and view your immunization records using the Immunization Connect Ontario (ICON) portal. If you are a parent, you can also use the portal to report or view your child's immunizations, including those required for school under the Ontario Immunization of School Pupils Act. 

Remember to report your immunizations after every new dose! 

Visit Immunization Connect Ontario (external link)  

Immunization topics

Halton Region Public Health works to help prevent disease and optimize health for everyone living in our community. These efforts include promoting immunization/vaccination and monitoring compliance with provincial requirements for immunization/vaccination.