Five people with COVID-19 have died in South Australia, taking the total number of deaths in the state since the start of the pandemic to 133.
The victims are a man in his 70s, a woman and two men in their 80s, and a man in his 90s.
"Our thoughts are with the family and friends of those people who have sadly passed," Premier Steven Marshall said.
There were 1,147 positive cases of coronavirus in the past 24 hours to midnight, the lowest total this year.
There are currently 14,635 active cases in the state, the lowest number since January 1.
"Every single day we see more people recovering than we see becoming COVID-positive."
A total of 224 COVID-19 patients remain in hospital, 16 of them in intensive care.
Five of those patients are on ventilators.
The number of outbreaks among Aboriginal communities has dropped from nine to six.
Health authorities are seeking to arrest a decline in PCR testing, but the number of PCR tests conducted in the most recent 24-hour reporting period fell to 7,364 — a 15 per cent decrease on the previous day.
Modelling shows cases staying in hundreds
SA Health modelling released last night showed cases would remain in the hundreds each days into April as restrictions were eased in stages through mid-March.
However, the forecast, produced by the University of Adelaide and South Australian Health and Medical Research Institute did not show a new spike in cases.
Mr Marshall said he planned to announced reduced restrictions on Friday and then the two fortnights after that.
Areas to be considered included gyms, home gatherings gaps and hospitality restrictions, he said.
New vouchers for eating in CBD
Vouchers for $100 discounts on accommodation in South Australia will be available in an online ballot from Friday.
The state government said 100,000 vouchers were available in the seventh release of Great State accommodation vouchers.
It said the record number of vouchers was being released in time to draw more visitors during Adelaide's festival season.
In parallel, the state government and the Adelaide City Council today launched a second year of Experience Adelaide dining vouchers worth $30 each.
Lord Mayor Sandy Verschoor said the program would now include breakfast, as well as lunch and dinner, after a "very, very quiet" January in the CBD.
The council also hosted a "Drivers' Month" to encourage people to return to the CBD in 2020.
Backpackers named as exposure site
The Adelaide Travellers Inn backpackers hostel on Hutt Street in Adelaide's CBD was named as a high-risk exposure site for all of January 22—28 as well as a close contact location for January 29–February 4.
Owner Gary Locke said someone had stayed at the hotel during the week but had not told anyone they had tested positive for COVID-19.
He said four or five people had tested positive for the virus so far.
About 30 people would head from the hostel into a medi-hotel today, he said.