Alberta Health Services is estimating about 110 people may have been exposed to measles at Stollery Children's Hospital, after a child with a lab-confirmed case was treated.
The child was at the Stollery two weeks ago. An AHS official said those considered exposed were notified. Of the 110 exposed AHS have said that 101 were not immune.
AHS is asking the exposed people to stay away from work, from enclosed public spaces, and public transit for 21 days.
People born before 1970 are considered immune to the illness. Anyone born after that year is not considered immune.
In an email to CBC, AHS said this response is standard and "there is nothing unusual about this case, or our follow-up."
Children in Alberta typically receive their first dose of the measles vaccine at 12 months old, and the second and final dose between four and six years old.
Symptoms of measles include fever, cough, runny nose, red eyes and a red blotchy rash that appears several days after the fever starts.
Currently there is no known cure for measles. If you are concerned about your immunization history, or your child's, it is recommended that you contact Health Link at 811.