Dr Enzo Binotto Queensland Health's Infectious disease expert says while the H1N1 pandemic is over recent hospitalisations are a reminder to stay vigilant.
"We just worry that the there is a degree of circulation of the virus in the community and that there are still some vulnerable people out there," he told AAP.
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Dr Binotto says the virus is still circulating in the wider community but health authorities have stopped testing for it in most cases.
He says the likelihood of further serious cases will decline in five or six weeks with warmer temperatures.

