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Immunizations & Serology

Measles, Mumps & Rubella (MMR)

How to prepare MMR vaccination or serology records when your program or placement assigns this requirement.

Applicability: Your program or placement may assign this requirement.

CareCard catalogue default: 8 years.

Evidence reviewed: August 30, 2026

Follow the evidence and expiry shown in your CareCard requirement. Vaccination and serology decisions should be made with a health care provider, especially during pregnancy or when a live vaccine may be contraindicated.

What your assigned requirement may ask for

  • Records showing two MMR doses, or
  • The most recent MMR serology report
  • Additional vaccination evidence if a result is non-reactive or indeterminate

Upload complete records showing the vaccine or test dates. Your assigned requirement determines which evidence is acceptable.

Current guidance

The Canadian Immunization Guide recommends that health care workers be immune to measles, mumps, and rubella. For measles and mumps, health care workers who do not have documented evidence of two doses or laboratory evidence of immunity should receive two MMR doses. Rubella guidance uses documented vaccination or laboratory evidence, with individual advice where needed.

MMR is a live vaccine and is generally contraindicated during pregnancy and for some immunocompromised people. A health care provider should determine the appropriate approach.

CareCard validity

CareCard's current catalogue default is 8 years. This is a tracking default, not a statement that documented immunity expires after eight years. The expiry shown on your assigned requirement controls.

Sources

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