UPDATE — 4:41 p.m.: Queensland Chief Medical Officer, Dr. Jeanette Young, announced that Sue-Ellen Kovack has tested negative for the Ebola virus.
The woman will remain under observation for at least another 24 hours as a precaution, Young said.
Australian health authorities have placed a woman under observation with fears she contracted the Ebola virus while working in a Red Cross hospital in Sierra Leone.
Queensland's Chief Medical Officer Dr Jeanette Young said the 57-year-old woman had spent one month working in the Ebola field hospital and was under "home isolation" when she reported symptoms of a mild fever this morning.
If infected the volunteer nurse would be Australia's first patient with the Ebola virus.
Dr Young called the woman "an amazing lady" for volunteering to help manage the outbreak of Ebola in West Africa and for self-reporting to the hospital.
She also said a Brisbane doctor had recently returned from the region and is undergoing the same "home isolation" process.
It's the second time Queensland health authorities have responded to an Ebola scare, with a man (pictured) reporting symptoms of the virus was cleared within hours of reporting his condition last month.