Australian Capital Territory Senator Katy Gallagher and her family are in isolation after her daughter tested positive for COVID-19 amid a growing outbreak in the state's capital.
The federal Labor senator said her daughter Evie — one of the ACT's 17 cases on Tuesday — was "feeling pretty unwell and understandably worried about what this means for her and for the rest of her family".
Ms Gallagher said she and her family, the rest of whom had tested negative, would remain in "strict lockdown" until ACT Health advised otherwise.
"I am lucky as I am fully vaccinated. Unfortunately too many Australians have not had that opportunity," she said, in a post to Facebook late on Tuesday.
"My focus right now is on my little girl and getting her through this – but these events bring a sharp personal focus to the consequences of our government's failure to ensure a prompt, efficient national rollout of vaccines.
"Here I sit tonight, where after doing everything right for 18 months, like millions of other families right around Australia – I am left with my children completely vulnerable to COVID-19."
On Friday, Prime Minister Scott Morrison celebrated the milestone of a quarter of Australian adults being fully vaccinated.
A month earlier, the percentage of Australians who were double vaccinated stood at 11.6 per cent.
"That just demonstrates how quickly this vaccination program is gathering pace all around the country," Mr Morrison said.
But Australia's vaccine rollout still lags behind much of the developed world. Half of Americans and 60 per cent of British people are fully vaccinated and many European countries are now approaching two-thirds of their population with two jabs, according to Our World in Data.
Ms Gallagher said she was grateful for the medical and personal support her family was receiving.