Listen to this article
Estimated 2 minutes
The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results.
A measles outbreak in Quebec has grown and cases are now being linked to locations in Montreal.Â
As of Dec. 17, public health officials in Quebec have confirmed six cases of measles in Quebec, primarily in the Lanaudière region, the Laurentians and Laval.
But public health officials now say people may have been exposed in Montreal.Â
They list a youth clinic in Pierrefonds-Roxboro, and the emergency rooms of both Sainte-Justine Hospital and the Maisonneuve-Rosemont Hospital as possible exposure locations.Â
They also list a Walmart Supercentre in the Saint-Leonard neighbourhood and an Adonis grocery store in Anjou as places where an infected person visited.Â
For the full list of exposure locations, along with dates and times of exposure, see the Quebec government website here.Â
The flagging of new exposure sites comes after public health officials signalled a new measles outbreak in Quebec and said a person with measles had visited the Up centre d’urgences pédiatriques Saint-Eustache.Â
The new outbreak is the first in Quebec in months. The last outbreak occurred between December 2024 and April 2025.
Quebec public health officials are investigating the outbreak in an attempt to discover its origins and identify people who have been exposed to measles.
Measles is extremely contagious. Common symptoms include fever, runny nose and a characteristic red rash spreading across the body and lasting one to two weeks. It can lead to serious complications including pneumonia and brain inflammation.
People at risk include babies under one year old, people with weakened immune systems and those who have not been sufficiently vaccinated against measles.