South Australia's silent plea for a positive outcome amid the threat of the state's second wave of COVID-19 came on Monday with the recording of just one new infectious case.
SA Health chief public health officer, Professor Nicola Spurrier announced that the known woman is linked to the Parafield cluster and has been in quarantine since last Monday.
One man remains in hospital.
However, Prof Spurrier reiterated Friday's warning.
"[It's] still a critical week, we not out of the woods yet, if we have any community transmission we are likely to see it this week," she said.
The new coronavirus case revealed an eight-day incubation period with the professor highlighting that "many people" returned a positive test on shorter incubation periods and while others were longer.
"[This] absolutely tells us people need to quarantine in 14 days," she said.
In response the public has been urged to continue to wear face masks and to daily check the SA Health website for updated transmission locations.
"...if we do have any cases, we can do a risk assessment and [this] helps us to cut off that ongoing transmission," she explained.
Masks are encouraged to be worn when meeting with people and in large shopping centres.
[It's] still a critical week, we not out of the woods yet, if we have any community transmission we are likely to see it this week.SA Professor Nicola Spurrier
Premier Steven Marshall continued to praise South Australians for "rising to the challenge" during the second wave.
"What a difference a week makes," he said.
He shared his optimism, especially as the state heads into the festive season and with Northern Territory opening their border to SA.
Yet he added that testing is the cornerstone to SA's response to the COVID-19 pandemic.
"...continue to maintain our testing regime, also hand hygiene, physical distance and wearing masks," Premier Marshall advised.
Meanwhile, 8689 coronavirus tests were made on Sunday - well up from previous numbers.
Currently there are 37 active cases of COVID-19 in SA - a total of 555 cases.
For updates, visit www.sahealth.sa.gov.au.