Measles Cases Reported in Quebec and New Brunswick, Public Health Officials Alert Public
Public health authorities in Quebec and New Brunswick, Canada, are investigating confirmed cases of measles, prompting alerts for travelers and those with potential exposure. The emergence of these cases underscores the ongoing risk of measles transmission and the importance of vaccination, especially with global travel resuming.
On February 4, 2026, the Direction de la santé publique du CISSS du Bas-Saint-Laurent confirmed the first case of measles in the Bas-Saint-Laurent region. Health officials determined the individual contracted the illness during international travel. The person was potentially infectious in the Bic sector of Rimouski on January 22, prompting a public health response to limit further spread.
A separate case was identified in an individual who arrived at Montréal-Trudeau International Airport on January 21, 2026, aboard AeroMexico flight AM680 from Mexico City. Authorities are warning that the virus may have been transmitted to other travelers at the airport between 1:00 AM and 7:25 AM, and in the arrivals area between 8:00 AM and 11:00 AM. This individual then traveled to Rimouski, where potential exposure occurred at the Familiprix pharmacy in the Bic sector on January 22 between 11:00 AM and 1:15 PM. Journal Métro reported on this case.
As of February 6, 2026, a total of 12 confirmed cases of measles had been reported in Quebec since the start of an outbreak on November 29, 2025, with three cases acquired outside of the province. The Quebec government website provides details on exposure locations and recommended precautions.
Health officials emphasize that measles is highly contagious and can remain infectious in the air for up to two hours. Individuals can transmit the virus four days before the onset of a rash and remain contagious for four days after the rash appears. Symptoms, which can take up to 21 days to develop, include fever, cough, runny nose, red eyes (conjunctivitis), and a characteristic rash. Complications can include hospitalization, ear infections, pneumonia, and, in rare cases, encephalitis or even death.
Vaccination remains the most effective way to protect against measles. Individuals born after 1970 are advised to ensure they are vaccinated. Those born before 1970 are generally considered immune due to prior exposure. Individuals can verify their vaccination status by calling 1-888-862-3487, option screening, or by scheduling an appointment through Clic Santé. The recent cases highlight the importance of maintaining high vaccination rates to prevent outbreaks and protect vulnerable populations.
