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20 Mar 2024 | 03:33 PM UTC

Canada: Elevated measles activity reported in Quebec, especially Montreal, in March

Elevated measles activity reported in Quebec, especially Montreal, in March. Confirm vaccination.

Informational

Health officials have reported elevated measles activity in multiple areas in Quebec, Canada with a total of 28 cases reported Jan. 1-March 19. This is compared to no locally acquired measles cases reported over a similar period in 2023. Montreal (15 cases) is most affected, followed by Laval (5 cases). Other areas reporting less than 5 cases include Mauricie and Centre-du-Quebec, Laurentians, Monteregie, and Lanaudiere. Health authorities urge those who are not vaccinated against measles or have been in contact with a known case to get vaccinated as soon as possible. This report represents the most complete data available as of March 20.

Visit a doctor to ensure vaccination against measles or immunity through previous infection. Practice basic health precautions. Call your medical provider if symptoms develop within three weeks of being in affected areas.

Measles-containing-vaccine first-dose (MCV1) immunization coverage in Canada was estimated at 92 percent in 2022, which is within the 92-95 percent required to prevent wider community transmission. Health officials reported 12 cases of measles in Canada in 2023, of which 11 were imported cases, 3 cases in 2022, and no cases in 2021, and 2020.

Measles is a very contagious viral disease that spreads through respiratory droplets created when an infected individual coughs, sneezes or speaks. Infected individuals can also expose people around them by contaminating surfaces with secretions from the nose, mouth, and throat. Symptoms typically appear 7-14 days after exposure but can develop up to 21 days after exposure. Symptoms generally include fever, cough, runny nose, red eyes, and a red rash that begins on the face and spreads downward. Serious complications - including pneumonia - can occur, especially in children younger than five years old, adults older than 20 years old, and individuals with a weakened immune system.