This may not be the 'biggest flu season on record', but it is a big one – here are some possible reasons
August 18, 2017 by Ian M. Mackay And Katherine Arden, The Conversation
This year, the number of laboratory-confirmed influenza (flu) virus infections began rising earlier than usual and hit historic highs in some Australian states. If you have been part of any gathering this winter, this is probably not news.
States in the south-east (central and southern Queensland, New South Wales, Victoria, Tasmania and South Australia) are more inflamed by flu than those in the north and west. For example, Queensland has seen more hospital admissions than in the last five years, mostly among an older population, while younger demographics more often test positive without needing hospitalisation.
https://medicalxpress.com/news/2017-08-biggest-flu-season-big.html
