Australia's chief medical officer Jim Bishop revealed on Thursday that the number of A/H1N1 flu- related deaths in Australia had reached 102, reported Xinhua.
He said up to four times the number of people had presented to hospital emergency departments with A/H1N1 flu than would be expected with seasonal flu.
"We've modelled it on around 10 percent and we're closer to the 27 percent mark in terms of the people who end up being hospitalized who will have to go to ICU (intensive care units)," Bishop told reporters.
"That means this disease is particularly concerning in relation to the way it gets into the lungs."
The good news was a lot of the patients in intensive care "were recovering well and more quickly than we had anticipated".
Currently 449 people are hospitalized across the country with A/ H1N1 flu, with 109 of them in intensive care.
Australian Federal Health Minister Nicola Roxon said 80 percent of people testing positive to influenza now have A/H1N1 flu.
"So it is well and truly the dominant strain of flu that is circulating in Australia this season," she said.