We usually have to wait until winter approaches before we see an increase in cases of influenza, or the flu. But we have already seen a lot of flu this year, with 25,000 cases reported from January to March – and that’s only a fraction of actual case numbers.

Most people with the flu recover without treatment. But it can cause serious complications in older people, young children, pregnant women and those with underlying chronic diseases such as asthma or heart disease. Influenza kills around 3,500 Australians a year and lands 18,000 in hospital.

Vaccination is the best way to protect against flu and is recommended for everyone over the age of six months.

Flu vaccines are free for certain risk groups. Others can access them (usually for a fee) at pharmacies, GP clinics and local council clinics in some states and territories. Some employers also offer vaccinations for staff.

Influenza has been unpredictable since the COVID pandemic, with off-season circulation. There are also concerns protection might lag at the end of winter. So when is the best time to get vaccinated?

What are the symptoms and how does it spread?

Flu symptoms include a cough, sore throat, fever, body aches and fatigue.

Flu spreads from person to person via small respiratory droplets when you talk, cough and sneeze. It may also spread by touching a surface or object where infected droplets have landed, but this is less common.

So if you have flu-like symptoms, it’s important to stay at home.

Flu spreads more in winter months due to increased........

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