New measles outbreak in a pediatric centre in Saint-Eustache
Posted December 15, 2025 1:32 pm.
Last Updated December 15, 2025 1:40 pm.
After months without any transmission in Quebec, measles has resurfaced in a pediatric centre in Saint-Eustache. Three cases of measles have been reported so far in connection with this new outbreak.
Measles is a highly contagious disease whose main symptoms are high fever, cough, runny nose, red eyes, and a rash on the face and then on the body. For vulnerable individuals, including babies who have not yet been vaccinated, there can be complications and even death in some cases.
The current outbreak was reported at the UP pediatric emergency centre in Saint-Eustache. People who visited this location between 3:30 p.m. and 8:10 p.m. on Nov. 28 may have been exposed to measles. Public health officials are asking those who were exposed to monitor their symptoms until Dec. 19.
If a person is not vaccinated and has been in contact with a case of measles, they must self-isolate at home from the fifth day after exposure until the 14th day inclusive. An individual is not contagious during the first four days after exposure.
Last November, Canada officially lost its measles-free status, which it had held since 1998. The measles outbreak in Canada began in New Brunswick in October 2024 and has since affected more than 5,000 people across the country, causing the deaths of two infants in Alberta and Ontario.
Ontario, considered the epicentre of the outbreak for months, declared the end of its outbreak in October after recording more than 2,000 cases. In Quebec, the outbreak ended in April, with only 36 cases reported.
The outbreak of the same strain continues in Alberta, where approximately 2,000 people have contracted the disease. Other provinces continue to report a few cases.
Canada will be able to regain its measles-free status when transmission of the strain associated with the outbreak has been interrupted for at least 12 months.
—
The Canadian Press’s health coverage is supported by a partnership with the Canadian Medical Association. The Canadian Press is solely responsible for this journalistic content.
–This report by La Presse Canadienne was translated by CityNews
