Immunization for your Children

A child sitting on her father's shoulders holding balloons with her mom next to them.

Why is it important to immunize?

Infants and young children are more susceptible to vaccine preventable diseases because their immune systems are not mature enough to fight all infections. Children who do not get vaccinated are at greater risk if they come in contact with vaccine preventable diseases. It’s important for children to be up-to-date with their vaccinations. Schools are places where infectious diseases are commonly spread. As a parent, you can keep your kids of all ages healthy with routine health care and vaccinations. Vaccines are the safest and most efficient way to guard against some diseases. Postponing vaccines can be harmful because it delays protection.

Following the Ontario routine vaccine schedule is the best way to protect your child.

Which vaccines does my child need?

Infants and Preschoolers
School age and Teens

What if my child has missed a shot?

If your child has missed one or more of their vaccines, book an appointment with your doctor or call the Health Unit as soon as possible. We can help you figure out which vaccines your child has already had and which ones are still needed.

Front cover of a yellow immunization record card.

Do I have to report my child’s immunizations to the Health Unit?

Every child should have a yellow card that keeps track of their immunizations.

It’s the parent’s job to keep the card updated, and to report immunizations received by their child to the health unit. Health care providers, including doctors, do not report immunization dates to us. Any time your child receives a vaccination, please contact our immunization line at 519-258-2146 ext. 1222.  Visit our immunization record page to learn more about reporting vaccinations or viewing your child’s immunization record. 

Care for your Child after Vaccinations

Vaccines, like any medicine, can have side effects that are usually mild and brief. Most children are fine after getting a shot. Side effects are usually minimal and last less than 24 hours. In rare cases, a child may have a serious allergic reaction. The risks of a serious reaction happening are lower than the risks of the diseases the shots prevent. After your child receives a vaccination (shot), your child will be asked to wait for 15 minutes to make sure that there are no side effects.