No, you’re not imagining it. Flu season is late and cases are up
Australia is experiencing an unseasonable rise in influenza cases during the spring, driven largely by the H3N2 subtype. Health experts note that post-pandemic flu patterns have become increasingly unpredictable.
Why it matters
The shift in seasonal illness patterns impacts public health surveillance and healthcare resource planning.
News Business Opinion In Depth Events Quiz Donate Subscribe Life in South Australia SALife Adelaide Guide & Events Citymag Arts News & Reviews InReview Best SA Homes Premium Property News Business Opinion In Depth Events Quiz Donate Subscribe In Depth No, you’re not imagining it. Flu season is late and cases are up T D The New Daily Sep 23, 2026, updated Sep 23, 2026 Australia's flu cases were up in early September, at a time when they're usually falling. The weather is warming up and the hay fever season has begun, but more people are experiencing cases of influenza than expected for spring.
In the two weeks to September 6, flu cases were up 27 per cent on the previous two weeks. And case numbers are rising.
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