Flu seasons, like the COVID-19 pandemic, have become unusual and unpredictable. Here's why

Something strange has happened to flu seasons since COVID-19 arrived on the scene. (Pexels: Andrea Piacquadio)

After the COVID-19 pandemic delivered the world a crash course on virus behaviour, this year's flu season is proving what healthcare specialists and epidemiologists have been saying all along: Viruses are unpredictable and, sometimes, a little weird.

Australia's flu season is early and case numbers are increasing at a rate that is alarming some specialists. The nature of infection is a worry too.