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Facts About...


What is it?

How effective is the MMR vaccine?

Who should receive the vaccine?

The MMR vaccine is given in a series of two shots.

*In Ontario, two doses of MMR vaccination after the first birthday are required for school attendance under the Immunization of School Pupils Act.

NOTE: MMR and chickenpox vaccines MUST be given at the same visit or at least 28 days apart. If administered less than 28 days apart, the second of the two vaccines may not be effective.

Are there side effects with the vaccine?

Most children have no side effects from the MMR vaccine. The most common side effects are:

Severe allergic reactions after vaccination are very rare and may not be related to the vaccine. However, if you think a serious reaction is developing, seek medical attention right away. Any unusual or significant changes in your health or your child’s health after receiving the vaccine should be reported to a health care provider and to the Health Department.

Who should NOT get the vaccine?

If you have any medical conditions, discuss the vaccine with a health care provider to determine if you should receive it.

Your record of protection

children in school or child care, please call the Health Department to update your child’s immunization records. Keep your records in a safe place!

*Parents must contact the Health Department if you object to immunization based on conscious or religious beliefs, or if your child cannot be immunized for medical reasons.


September 21, 2017