Influenza A cases rise sharply in eastern Ontario, officials urge vaccination

Helathcare worker administer a vaccine injection into masked patient's upper arm inside a clinic

December 15, 2025

RED FM News Desk

Health officials are warning of a sharp rise in Influenza A cases across Ontario, including Ottawa and Eastern Ontario. Hospitals are reporting higher-than-usual flu activity for this time of year. 

CHEO says it is seeing more severe flu cases and complications. “In the first two weeks of December, three children between the ages of five and nine have died from influenza A-related complications in the Ottawa and Eastern Ontario Health Unit (EOHU) regions.” said Ottawa Public Health in a statement released on Monday morning. Officials say this highlights how serious the flu can be. 

Medical Officers of Health are urging everyone six months and older to get a flu shot. Vaccination is especially important for children this season. Parents and caregivers are also encouraged to get vaccinated. 

Health officials say the flu shot takes about two weeks to become fully effective. Getting vaccinated now can help protect people during the holiday season. While the vaccine may not prevent all infections, it reduces the risk of severe illness and hospitalization. 

Flu shots are available at participating pharmacies for people aged two and older. Many pharmacies offer walk-in appointments. Ottawa Public Health also provides flu vaccines by appointment for children under five, their household members, and newcomers without OHIP. 

Officials are also reminding the public to wash hands often. People should cover coughs and sneezes. Anyone who is sick should stay home. Masking is recommended in crowded indoor spaces for those at higher risk. 

Health authorities say getting vaccinated and taking precautions can help protect vulnerable people during a challenging flu season.