INFLUENZA forced more than 650 patients to attend the Ipswich Hospital in 2012.
Executive director Medical Services and Ipswich Hospital Dr Yogesh Mistry said although it was not a record, the hospital did record a high number of influenza cases.
Dr Mistry said while the flu season traditionally ran from May to September, influenza could be contracted at any time of the year.
"People should always be vigilant about maintaining good health precautions at all times of the year, as it is possible to get the flu anytime in the year," he said.
"A number of precautions can be taken to reduce the risk of catching many illnesses, including influenza.
"These include good hand hygiene and avoiding and/or minimising contact with sick people."
The annual influenza vaccination can protect against influenza and is strongly recommended for people aged over 65 years.
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