Quebec public health authorities have confirmed that a passenger with measles was on Air Canada flight AC 835, which arrived from Madrid to Montreal-Trudeau International Airport on Jan. 8 at 3:51 p.m.
Anyone on the flight or present in the arrivals and baggage area at Montreal-Trudeau between 3:51 p.m. and 6:20 p.m. on Jan. 8 may have been exposed to the virus.
The infected individual subsequently visited several locations in Quebec between Jan. 10 and 13.
Public health officials advise anyone who was at these locations during the specified periods to monitor for symptoms of measles.
Those who develop symptoms should isolate and contact Info-Santé at 811.
- READ MORE: Quebec measles information
As of Jan. 16, nine confirmed cases of measles have been reported in connection with the ongoing outbreak.
People at higher risk of complications from measles include:
- Infants under one year old
- Individuals with weakened immune systems
- Pregnant people who are not adequately vaccinated against measles
Authorities emphasized that keeping vaccinations up to date remains the best protection against the disease.
For a full list of locations visited by recent measles cases in Quebec and across Canada, as well as guidance for potential contacts, visit the Quebec government’s Measles Outbreak page.
Vaccinations are available at local public health service points, and appointments can be booked via the Clic Santé website or by calling 1-877-644-4545.


