Pneumonia Hospitalizations Surge Nearly 30% in Canada

The Canadian Institute for Health Information (CIHI) has revealed a significant increase in pneumonia hospitalizations across Canada, with rates rising by nearly one-third in the last year. The data, which covers the period from April 1, 2024 to March 31, 2025, highlights a particularly alarming trend among children aged five to 17, where hospitalizations more than doubled compared to the previous year.

This surge is attributed to various factors, including an exceptionally severe flu season. According to Dr. Jesse Papenburg, an infectious disease specialist at Montreal Children’s Hospital, the findings align with the observations of healthcare professionals who experienced a notably busy respiratory illness season. Dr. Papenburg pointed out that the flu can lead to viral pneumonia, which complicates the illness and makes patients more susceptible to bacterial pneumonia.

Factors Behind the Surge

Dr. Papenburg explained, “It’s not uncommon for somebody to say they had an influenza-like illness, felt better, and then suddenly presented with classic bacterial pneumonia symptoms.” This indicates the dual threat posed by influenza and pneumonia, especially during peak illness seasons.

Another contributing factor to the rising hospitalization rates is the spike in cases of “walking pneumonia,” primarily affecting children. This form of pneumonia, caused by the bacterium mycoplasma pneumoniae, generally results in milder symptoms such as cough, fever, and fatigue. While the majority of patients recover without hospitalization, the increased incidence has led to a higher overall number of hospital admissions than in previous years.

The CIHI data indicates that pneumonia hospitalizations have surpassed pre-pandemic levels across all age groups. For children and youth, hospitalizations surged by 143%, from 2,698 patients to 6,547. Among adults aged 18 to 64, hospitalizations rose by 34%, while seniors aged 65 and over saw a 22% increase.

Potential Causes and Recommendations

Dr. Lynora Saxinger, an infectious disease specialist at the University of Alberta, suggested that the current rise in pneumonia cases may also be influenced by different bacterial strains circulating in the population, strains to which immunity may not have been fully developed during the pandemic.

As for the current health season, Dr. Papenburg noted it is too soon to determine whether pneumonia hospitalizations will continue to rise. He emphasized the importance of vaccinations as a preventive measure. Parents should ensure their children are up-to-date on their immunizations, particularly the vaccine targeting the most common bacteria associated with severe pneumonia, which is included in the routine childhood immunization schedule.

As the healthcare community grapples with these significant trends, the data released by CIHI serves as a crucial reminder of the ongoing challenges posed by respiratory illnesses and the importance of public health measures in mitigating their impact.

This report incorporates findings from the Canadian Press, which first published the information on February 19, 2026. The coverage received support through a partnership with the Canadian Medical Association.