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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.

*Two doses of MMR are required after the student’s first birthday under the Immunization of School Pupils Act to attend school in Ontario.

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 2 vaccines may not be effective.

Are there side effects with the vaccine?

Infants aged 6-11 months can be vaccinated early if they are or may be exposed to one of the diseases (e.g. Travel to a country where measles is common). They will still need to have 2 doses after their first birthday.

Are there side effects with the vaccine?

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

A cold, wet compress to the site and/or acetaminophen (Tylenol®) can be used to help to relieve pain, swelling and/or fever after vaccination.

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 healthcare provider to determine of you should receive it.

Your record of protection

After you or your child receives a vaccine, update your immunization record (yellow card). For children in school or daycare, 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.


August 20, 2015