We are up to four community transmission cases in SA.
"Dozens" isolating doesn't sound like a lot....? so maybe hopefully they weren't very active people...
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Prison worker worker becomes fourth SA coronavirus case as Adelaide cluster forces dozens into quarantine
Four people have tested positive for coronavirus in South Australia outside of hotel quarantine.
SA Health says an 80-year-old woman has tested positive for COVID–19 after being treated at the Lyell McEwin Hospital in Adelaide's northern suburbs.
Two of her close contacts — a woman in her 50s and a man in his 60s — have also tested positive for the disease.
Chief Public Health Officer Nicola Spurrier said one of them worked at one of the medi-hotels in Adelaide's CBD.
One of them is the elderly woman's child.
Four other family members are showing symptoms, Dr Spurrier said.
Later on Sunday, a South Australian Correctional Services employee also tested positive.
An email from SA Correctional Services chief executive David Brown said the employee who tested positive works at Yatala Labour Prison in Adelaide's northern suburbs.
The employee is believed to be linked to the developing cluster of cases.
The department said it was in the process of activating a health rapid response team to assist with contact tracing efforts at Yatala Labour Prison.
South Australia has confirmed a fourth person outside of hotel quarantine has tested positive for coronavirus. Those infected include a woman recently treated at a hospital. More than 90 people who were in the emergency department at the time have been ordered to quarantine.
www.abc.net.au