When Is Flu Season 2024 Canada. The latest weekly data from the public health agency of canada (phac) shows that influenza activity is falling nationally, but remains high, in the new. The incubation period of influenza is usually 2 days but can range from 1 to 4 days.

Public health agency of canada. Last year’s flu season in canada saw extremely few cases, amid stringent public health restrictions across the country.