Public health officials in Quebec have reported a new case of measles involving a contagious child. The announcement marks the first measles case in the province since September 20, according to the authorities who made the report.
On Friday, the child with measles was present at Montreal-Trudeau International Airport while still contagious. Health officials noted that anyone who was at the airport around that time could have been exposed.
Contagious case of measles reported at Montreal’s airport. https://t.co/9eOGBEU0ju
The same child went to the emergency room at Sainte-Justine University Hospital Centre on Saturday. The visit occurred while the child was still capable of transmitting the virus, raising concerns about potential contacts in the hospital setting.
As of September 26, Canada had recorded 1,121 measles cases for the year.
Authorities are advising anyone who may have been at the airport or the hospital to check their vaccination status, monitor for symptoms of measles, and call Info-Santé 811 if they are unprotected and develop signs of the illness.
Contagious case of measles reported at Montreal’s airport https://t.co/IDrv6a3Su6
This reported infection is the first measles case identified in Quebec after September 20. The gap highlights a period of no known transmission in the province before this latest event.
As of September 26, Canada had recorded 1,121 measles cases for the year. The figure represents the total number of cases reported in Canada so far this year.
In November 2025, Canada officially lost its measles‑free status because of ongoing transmission of the virus. This loss occurred after ongoing transmission was detected.
Canada lost its measles‑free status in November 2025 due to ongoing transmission of the virus.
Montreal's public health authority specified that the child was at the airport late on Friday and at the Sainte‑Justine hospital early on Saturday. The precise timing helps public health teams trace possible contacts.
Public health officials are urging individuals who may have been exposed to the child to watch for symptoms and to seek medical care promptly if they are not vaccinated.
The situation in Montreal fits within a larger national trend where Canada has reported over 1,000 measles cases this year after losing its measles‑free status in November 2025.
Federal measles surveillance data shows that 1,121 cases have been reported in Canada this year as of September 26, matching the provincial and national counts cited by health officials.
Before the current case, a measles outbreak in Quebec had concluded after 28 reported cases. The outbreak is noted as having ended in August.
Quebec public health has explained that it may take between 5 and 21 days, with an average of 10 to 14 days, from exposure to the measles virus to the appearance of symptoms.
Quebec public health also warned that measles is highly contagious and advised that anyone experiencing symptoms should call Info-Santé 811 before going to a medical clinic or emergency room.