Urgent alert for ANOTHER busy supermarket as Sydney's shock Covid outbreak grows to four including a worrying mystery case on the other side of the city
- New South Wales authorities recorded two new Covid-19 infections overnight
- Man tested positive in Baulkham Hills area of north-west Sydney on Thursday
- Case a mystery infection as unlinked to two cases in eastern suburbs Wednesday
- Premier Gladys Berejiklian stopped short of making face coverings compulsory
A busy Harris Farm supermarket in Sydney's inner-west has been added to the spiralling Covid exposure list.
An infected man is believed to have shopped at the Leichhardt shop on Tuesday between 9.50am and 10.05am.
The state officially recorded two new Covid-19 cases overnight, and also revealed a further two infections as a man in his 40s in Sydney's west not linked to other cases in the latest outbreak tested positive to the virus.
The other cases are a Bondi man in his 60s who works driving international flight crews and is not vaccinated, as well as his household contact.
Gladys Berejiklian has warned Sydney residents to avoid large-scale events near the city's growing list of 19 exposure sites to prevent a potential super-spreader event.
However she stopped short of making face masks compulsory on public transport.

Testing queue swelled again on Thursday as yet more exposure sites were announced (pictured, the drive-through clinic in Bondi Beach)

An infected man is believed to have shipped at the Leichhardt Harris Farm on Tuesday between 9.50am and 10.05am
The third person to test positive was a woman in her 70s in Vaucluse.
She visited the Belle Cafe in Vaucluse at the same time as the airport driver, who health officials have now confirmed contracted the highly-contagious Indian Delta variant of the virus.
Chief Health Officer Dr Kerry Chant said genomic sequencing showed the limousine driver had a strain of the Delta virus never seen before in Australia.
'This strain does not match anything that's been uploaded in Australia at this time, but it does match perfectly a sequence that's been uploaded from the US,' she said.
The Delta variant of the virus is believed to spread faster than the Kappa strain, with global health experts warning it could also be even deadlier.
Ms Berejiklian said she strongly recommended wearing a mask on public transport in the eastern suburbs of Sydney.
The announcement came as Tasmania slammed shut its borders to anyone from New South Wales.

Digital signs encouraging customers to wear face masks during the pandemic pictured at Westfield Bondi Junction. A woman in her 70s has also tested positive in Vaucluse, meaning Sydney's latest outbreak has reached four cases

Cars line up for Covid-19 testing in Sydney on Thursday. New South Wales has recorded two new Covid-19 cases overnight
The island state announced Wednesday morning it would block all New South Wales travellers and anyone who had visited a listed site since June 11 have to immediately get tested and isolate.
'Anyone who is planning on travelling to Tasmania who has been to any of these high-risk premises at the specified dates and times will not be permitted to enter the state,' Tasmania's Director of Public Health Mark Veitch said.
Queensland Premier Annastacia Palaszczuk also said she would closely monitor the ongoing situation, with closed borders likely to occur given the previous decisions to quickly block residents from New South Wales from entering the state.

NSW Premier Gladys Berejiklian has strongly urged anyone travelling on public transport in Sydney's eastern suburbs to wear a mask after the area's Covid-19 outbreak

A hotel quarantine driver tested positive for the highly-contagious delta variant of coronavirus at the Bondi Beach testing facility on Wednesday. Pictured is a drive-through Covid-19 testing queue in Sydney

The state recorded another Covid-19 case overnight as a man in his 40s not linked to the other cases in the latest outbreak tested positive to the virus - taking its total to four

A medical worker prepares to administer a test at the Bondi Beach drive-through centre in Sydney on Thursday
'In line with other jurisdictions, we will maintain restrictions on travel from Greater Melbourne for another seven days, and we strongly advise those planning travel to Greater Sydney to reconsider,' she tweeted on Thursday morning.
Contact tracers are meanwhile racing to find Sydneysiders who visited various exposure sites including a David Jones store, a cinema, several cafes and restaurants and a bakery in the city's east and north-west between June 11 and June 15.
The airport worker first attended the Belle Cafe in Vaucluse on June 11 between 9.15am-9.50am and returned on June 12, June 13 and June 14 at various times.
He also attended Sourdough Bakery at Westfield Bondi Junction between 12.40pm-1.10pm on June 11.

The news of a new locally-acquired case sparked long queues at the Bondi drive-through testing clinic (pictured on Wednesday night) which saw opening hours extended from 4pm to 10pm to accommodate the surge

East Village shopping centre in Zetland, inner-Sydney, has been listed as a Covid exposure site - including its Coles supermarket - after an infected person visited on Monday
He returned to the shopping centre the following day where he shopped in David Jones between 11am-11.40am and Myer between 11.40am-12.15pm.
The infected man attended a movie screening of The Hitman's Wife's Bodyguard at Event Cinemas Bondi Junction on Sunday afternoon, June 13 for the 1.45pm screening.
Anyone who attended the 1.45pm screening in cinema 1 at the venue on June 13 is ordered to get tested immediately and self-isolate for 14 days, regardless of the result.
Other moviegoers who were at the cinema on Sunday between 1.30pm-4pm are ordered to get tested and self isolate until further notice from authorities.

Authorities are scrambling to track down hundreds of shoppers he may have exposed the virus to at another popular Westfield shopping centre. Pictured: Westfield Bondi Junction

Customers wearing face masks at Westfield Bondi Junction. Contact tracers are racing to find hundreds of people who may have been exposed to the virus in the shopping centre
He also dined at two Vaucluse restaurants including Washoku on June 12 between 12pm-1.30pm and Rocco's on June 14 between 10.55am-11.30am.
The most recent venue he visited was the Celeste Catering Macquarie Park Cemetery Cafe in North Ryde on June 15 between 1pm-1.20pm.
There are reports the frontline worker was not vaccinated, despite vaccines being offered to those working in the quarantine sector since March.