Despite an initial negative COVID-19 test result on June 26, he has since developed symptoms while isolating in Adelaide, and four out of five of his household contacts have tested positive.
For this reason, Gunner and health experts believe he is positive for COVID-19 and highly infectious. However, they don’t believe he was highly infectious while at Alice Springs airport.
“Like all our other decisions, we will not take a punt on this,” Gunner told reporters. “We will operate on the assumption that he has COVID-19, and we will operate on the assumption he was infectious while in the territory.”
“We’re working closely with the (Central Australian Aboriginal Congress) and the council to make sure you’re safe,” he said.
The lockdown comes despite no new cases reported in the NT overnight.
Meanwhile, the lockdown across the Greater Darwin area has been extended for a further 72 hours until 1 p.m. on Friday, July 2. This includes the Darwin, Palmerston, and Litchfield Council areas and Wagait and Belyuen Shires.
The mine worker, a young man from Victoria, had travelled to the mine on June 18 via Brisbane hotel quarantine.
He was one of over 700 fly-in, fly-out (FIFO) mineworkers who have since travelled to Western Australia, Queensland, South Australia, New South Wales, Victoria, Tasmania, New Zealand, and other parts of the NT.
There are understood to be 16 cases linked to the outbreak, but the NT government has only recognised 10.
An infected close contact of one of two mineworkers diagnosed in Queensland hasn’t been included in the Tanami Desert cluster.
The other five are the miner and his family in Adelaide.
Two more infected workers were also located at the mine and evacuated to The Centre for National Resilience in Howard Springs quarantine facility, near Darwin.
Another mineworker, who‘d travelled to New South Wales, was found to be positive for the virus, as were two co-workers who’d travelled to Queensland, along with close contact of one of them.
A Darwin man in his 50s, who left the mine on Friday, was also diagnosed with COVID-19.
He travelled to multiple venues, including Darwin’s members-only watering hole, the Buff Club, where he stayed for more than four hours before being ordered to quarantine.
The most recent cases are the wife and daughter of a mine worker who tested positive for the virus after also leaving the mine on Friday and travelling to Palmerston, 20km south of Darwin.
All were in quarantine at the Howard Springs facility when they tested positive.
Darwin and its surrounding areas have been in lockdown since Sunday. However, there are hopes that the restrictions will end on Friday.