Health experts are warning Australians to prepare for a severe flu season, with the fast-spreading“ Super K” strain already circulating earlier than expected and vaccination rates continuing to decline.

Only one in three Australians received a flu vaccination last year, down from one in two before COVID-19. Of particular concern is the low uptake among young

children, with just one in four under the age of five vaccinated, despite being among the most vulnerable to serious illness.

Doctors say the early arrival of the Super K strain is a worrying sign, with influenza activity already higher than usual ahead of winter. In another concerning indicator, influenza-related

deaths in Australia doubled in January 2026 compared to the same time last year.

Health professionals warn that the combination of low vaccination rates and early, rapid spread could lead to a dangerous and potentially deadly flu season- particularly for high-risk groups such as the elderly, young children, pregnant women and those with underlying health conditions.

“ This is not a typical flu season,” experts say.“ We are seeing the virus spread earlier and faster, which increases the risk of widespread illness as temperatures drop.”

The Super K strain has also dominated the northern hemisphere winter, where data shows it has had a significant impact on children. Alarmingly, the vast majority of childhood influenza deaths in recent months occurred in unvaccinated children.

With winter approaching, Australians

are being urged to act now and book their flu vaccination as soon as possible. Many general practices and pharmacies have already begun administering this year’ s vaccines.

Health authorities stress that vaccination remains the most effective way to reduce the risk of severe illness, hospitalisation and death, and plays a critical role in protecting the broader community.

Last year saw the highest number of influenza deaths in Australia since the Spanish flu pandemic more than a century ago- a stark reminder of how serious the virus can be.

Those most at risk- including infants aged six months to five years, adults aged 65 and over, pregnant women, Aboriginal and Torres Strait Islander people and individuals with chronic medical conditions- are eligible for free flu vaccinations.

In addition to vaccination, simple measures such as regular handwashing, staying home when unwell and covering coughs and sneezes can help limit the spread.

As the colder months draw closer, health experts say the message is clear: don’ t wait until flu season peaks- protect yourself and your community now.