Alberta experienced a significant surge in measles cases in 2025, with over 2,000 confirmed cases reported. Although the transmission rate has decreased, health experts caution that the virus remains a threat in the upcoming year.
The outbreak, which started in March, was fueled by multiple measles outbreaks across the province, originating from more than a dozen cases brought in from other regions. According to Craig Jenne, a professor at the University of Calgary, Alberta had the highest per capita infection rate in the Americas in the previous year.
The majority of Canada’s measles cases in 2025 were concentrated in Alberta and Ontario, leading to the country losing its measles elimination status. Ontario reported 2,396 cases by December 27, according to data from the Public Health Agency of Canada.
Measles, a highly contagious disease, can result in severe complications such as pneumonia, encephalitis, and even death. Tragically, a premature baby born to a mother who contracted measles during pregnancy succumbed shortly after birth in Alberta’s outbreak.
Despite the challenges, Alberta has seen a decline in new cases and is currently not facing any major outbreaks. However, health officials emphasize that measles is still present in communities, posing a risk of exposure in certain areas.
Efforts to combat the virus included targeted vaccination campaigns, extended clinic hours, and a province-wide outreach program to boost vaccination rates. Over 156,000 measles vaccines were administered between mid-March and mid-December, a 41% increase compared to the previous year.
Dr. Karina Top, a pediatric infectious disease physician, stressed the importance of continued vigilance, highlighting that measles remains a looming threat. Measles exposure advisories are still in effect in certain zones, indicating that the outbreak is not yet fully under control.
While some regions with lower vaccination rates experienced measles spread, the majority of Alberta, including major cities, did not witness significant transmission. Authorities are actively working to limit further spread and provide timely information to help protect the population.