Influenza (flu)

The influenza virus or “flu” is a respiratory virus that circulates in Ontario, most frequently in the fall and winter. Influenza spreads from person-to-person through coughing, sneezing or having face-to-face contact. It can cause mild to severe respiratory disease. While anyone can get influenza, the very young, the elderly and people with certain medical conditions are at higher risk of complications. The best way to prevent infection is to receive the seasonal influenza vaccine every year.

Featured

 

Event

PHO Rounds: Model of care to address the impact of HIV on African, Caribbean & Black (ACB) Communities

As a part of the Black Public Health Series, this PHO Rounds will highlight the impact of HIV on Black communities living in Ontario and share lessons pertaining to the implementation of the Adolescents and Young Adults (AYA) model of care.

See the Event Details
Chat icon

Contact the Department

Communicable Disease Control

Communicable.DiseaseControl@oahpp.ca

Updated 3 Oct 2025