The Chief Public Health Officer of Canada issued a warning on March 6, 2025, about a significant rise in measles cases both globally and within Canada. As of early March, Canada has already reported 227 cases—more than all of 2024—primarily affecting unvaccinated or under-vaccinated children. Outbreaks have occurred in New Brunswick, Ontario, Québec, and Manitoba, with additional travel-related cases in Ontario, Quebec, and British Columbia.
Health officials are urging Canadians to check their measles vaccination status, especially before travelling during spring break. Measles is highly contagious and can lead to serious complications, including pneumonia, brain inflammation, and death. A travel health notice is in effect for all countries.
Recommendations include:
• Infants (6–12 months) should get an early dose if travelling to high-risk areas.
• Children, adolescents, and adults born after 1970 should have two doses.
• Adults born before 1970 should receive one dose if not immune and travelling.
Canadians should stay alert for measles symptoms (fever, red eyes, cough, rash) and avoid exposing others if symptoms arise. The statement emphasizes that vaccination is the most effective protection and calls on the public to help prevent further outbreaks by ensuring vaccine coverage remains high.
