Manish Sadarangani

Every year in Canada, there is an average of 23,000 cases of lab-confirmed influenza, 12,000 people who need to be admitted to hospital and 3,500 flu deaths. (Shutterstock)

The flu shot: Who should get it and why

As influenza season begins in North America, many people wonder whether to get a flu shot. Our expert delves into the pros and cons of the vaccine and how it works.