Another truck driver has tested positive today and had been infectious in the community for two days, between September 2 and 3.
He is believed to be a New South Wales resident, who has since returned home.
A BP service station in Archerfield has been identified as a close contact site, with those in the immediate area and Queensland more broadly urged to seek testing should symptoms arise.
The case is the latest in the state this week after a four-year-old girl, who lives in the Beenleigh area, tested positive yesterday and 46-year-old Logan truck driver tested positive earlier in the week.
The girl is the daughter of an administrative officer who works in the same area of the truck company's headquarters and is a family friend of the truck driver.
Chief Health Officer Dr Jeanette Young said she was "very concerned" about the community transmission as the truck driver had a high viral load.
"I know from the CT value of the truck driver's test result he had a lot of virus there," she said.
"The child didn't, so I'm actually less concerned about the child."
The four-year-old's infection was confirmed yesterday afternoon and forced a childcare centre in Logan to close.
Queensland Health Minister Yvette D'Ath said the girl had been infectious in the community for two days before she got tested.
Residents in Queensland will hear from health authorities later this morning to determine whether or not the state will head into a lockdown.