Alberta Braces for Severe Flu Season as H3N2 Strain Overwhelms Hospitals
A particularly virulent strain of influenza, the H3N2 virus, is rapidly spreading across Alberta, prompting urgent warnings from health officials and placing significant strain on the province’s healthcare system. The surge in cases is contributing to critical overload in emergency departments and raising concerns about the potential for a prolonged and severe respiratory illness season.
Rising Cases and Hospitalizations
Alberta is currently experiencing a worrying increase in influenza cases. For the week of December 14 to 20, 2025, the province recorded 2,762 new cases, bringing the seasonal total to 8,761. The test positivity rate, currently at 35.8%, is a figure experts describe as deeply concerning.
The impact is being acutely felt in hospitals. Last week alone, 223 individuals were admitted with the influenza virus, including 20 requiring intensive care. Tragically, two additional deaths were reported, raising the seasonal death toll to 47. “Not only are we seeing more cases,” one infectious disease specialist emphasized, “but infected people are getting more seriously ill and many more are requiring hospitalization than usual.”
Regional Disparities and Peak Projections
While the Calgary region experienced a slight decrease in cases – from 836 to 765 – the Edmonton region is facing a significant surge, with cases climbing from 668 to 865. An emergency department physician in Calgary cautioned that Edmonton “may not have peaked yet,” and warned that the decrease in Calgary should not be interpreted as a sign of improvement.
The upcoming holiday season is identified as a critical period for potential spread. “It is a time when families come together,” a health official explained. “These annual gatherings represent an excellent opportunity for viruses to be transmitted.”
Vulnerable Populations at Increased Risk
Health authorities have identified specific populations as being particularly vulnerable to this aggressive strain of the flu. The very young and the elderly are at the highest risk, with children under one year of age facing a comparable level of risk to individuals aged 60 to 70. However, the greatest concern centers on those aged 80 and over.
Emergency Services Under Pressure
The current wave of respiratory viruses is exacerbating existing pressures on Alberta’s emergency services. Waiting times are increasing dramatically, with some patients reportedly waiting up to eight hours for treatment. “The situation is really difficult in emergency departments at the moment,” one emergency doctor stated. “Some people wait hours to be examined.”
Looking Ahead: Flu and RSV Trends
Dr. Peter Jamieson, chief medical officer at Alberta Health Services (AHS), with 30 years of experience, anticipates the intensity of the flu to increase, with a projected peak around December 21. However, he noted that the respiratory syncytial virus (RSV) appears less concerning than in previous years, with its peak expected around January 11, 2026.
To address the surge in patients, AHS initially opened 336 beds. Of those, 206 will be maintained permanently, while the remaining 130 seasonal beds will be adjusted based on demand.
Public Health Recommendations
Faced with this escalating crisis, health authorities are strongly urging Albertans to get vaccinated, wear masks in crowded public spaces, and seek care at walk-in clinics and pharmacies for non-urgent medical needs. These measures are intended to alleviate the burden on already overwhelmed hospitals.
