South Australia records no new cases, close contacts of miner test negative

South Australia has recorded no new COVID-19 cases today after five cases were recorded yesterday.

The cases are all the family of a miner who worked in the Northern Territory who tested positive for the virus yesterday.

All 28 miners who were exposed to the virus on the flight from the NT to South Australia last Friday have been re-tested, all returning negative results, the state's Chief Health Officer Nicola Spurrier confirmed.

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"We're also testing all the family members, but I don't yet have all those results back," she said.

Ms Spurrier said "the majority" of the 121 people on board the Virgin flight 1742 from Alice Springs have also been tested for the virus.

Police are trying to track down two people on board the flight who have not yet been contacted due to providing incorrect phone numbers.

As well as anyone on that flight, SA Health yesterday issued an alert for anyone who was at the Adelaide Airport terminal last Friday between 5.40pm and 6.30pm, to quarantine and get tested immediately.

Ms Spurrier estimated there is over 300 people impacted by the alert.

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Fourteen staff members from a KFC in SA are in isolation after the miner who tested positive to COVID-19 and his partner visited the outlet.

Seven of the workers have so far returned negative test results with the remaining seven tests yet to be processed.

The KFC has not been listed as an exposure site and Ms Spurrier said she was "confident" that anyone who may be at risk of exposure has been contacted.

She said it was not necessary for people who visited the KFC to isolate or get tested.

A total of 11,700 tests have been conducted across the state he last 24 hours.

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After the miner, his wife, and three of their four children contracted COVID-19, the entire family was moved to a dedicated quarantine facility.

The Premier added all close contacts of the miner who tested positive to the virus yesterday have so far tested negative.

"We're very satisfied from the cooperation from the miner and his family," he said.

The miner developed symptoms after returning a negative test while in isolation.

Mr Marshall admitted it would still be an "anxious wait" over coming days to determine whether there has been any spread of the virus through the community.

None of the positive cases recorded yesterday spent time in the community while infectious, the premier said.

Testing is still underway in South Australia and Mr Marshall said yesterday a lockdown was not happening.

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Mr Marshall said the family's caution made South Australia "very fortunate".

"This family has been doing the right thing, all of the miners who have returned from the Northern Territory have been doing the right things by isolating and getting tested, we have not had any other positive tests for the other 28 miners," he said.

The case has also sparked a 72-hour lockdown in Alice Springs after the miner spent several hours in the city's airport while infectious.

The five latest cases are South Australia's first COVID-19 cases in more than 200 days.

The state will also be ramping up its vaccination capacity with three new country-based mass vaccination hubs set to open in the coming weeks, Premier Steven Marshall said.

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Despite avoiding a lockdown, South Australia is currently facing renewed restrictions.

When out in public, South Australians are urged to wear a mask, private gatherings are now limited to a maximum of 10 people and people should work from home if they can.

Masks are mandatory in all high-risk settings such as aged care homes and hospitals.

Weddings and funerals are capped at 150 people.

Pubs and clubs are restricted to one patron for every two square metres of floor space.

The restrictions are due to last for one week.