Millions of Australians urged to wear masks NOW after a coronavirus infected ...

Millions of Australians in coronavirus hotspots are being urged to wear protective face masks as clusters on the east coast of the country continue to grow.

The advice from health officials, disease experts and Australia's largest supermarket comes after an infected shopper visited a busy grocery store in Sydney's inner west.

Health authorities are becoming increasingly concerned about community transmission, after Victoria recorded it's second highest total of daily new infections on Friday with 627 cases.

There are fears New South Wales is on a 'knife's edge' after 17 new cases were announced on Saturday.

The Thai Rock cluster in Wetherill Park has now swelled to 98 cases, with 57 associated with the Crossroads Hotel, eight cases associated with Batemans Bay Soldiers Club, and 25 associated with the funeral events.

Five are associated with the Mounties pub in Mount Pritchard, and 24 are associated with the Potts Point cluster. 

In Queensland, authorities are also concerned after the state recorded ts first case of community transmission since May. 

A shopper is pictured wearing a face mask inside a Woolworths store in Sydney (pictured on Friday)

A shopper is pictured wearing a face mask inside a Woolworths store in Sydney (pictured on Friday)

A woman is pictured wearing a face mask while walking around St Kilda in Melbourne (pictured)

A woman is pictured wearing a face mask while walking around St Kilda in Melbourne (pictured)

A bike rider in Melbourne is pictured wearing a mask (pictured). Anyone who does not have a face in public in Victoria can be fined $200

A bike rider in Melbourne is pictured wearing a mask (pictured). Anyone who does not have a face in public in Victoria can be fined $200

Victorian Premier Daniel Andrews has already announced face covering will become mandatory across the entire state from 11.59pm on Sunday, August 2. 

But Deputy Chief Medical Officer Professor Michael Kidd said it's time for everyone to consider wearing masks.

'Particularly when people are outside their homes and in areas where physical distancing may be difficult,' Professor Kidd said.

'That, of course, includes when you go into the supermarket, where there's lots of people moving around and people may come closer to you than the 1.5 metres, that people should be considering wearing masks.'

Grocery chain Harris Farm Markets revealed that a shopper who visited their Leichhardt store in Sydney on July 26 between 3pm and 3:30pm later tested positive for COVID-19.

Grocery chain Harris Farm Markets (pictured) revealed that a shopper who visited their Leichhardt store on July 26 between 3pm and 3:30pm later tested positive for COVID-19

Grocery chain Harris Farm Markets (pictured) revealed that a shopper who visited their Leichhardt store on July 26 between 3pm and 3:30pm later tested positive for COVID-19

The advice from health officials, disease experts and Australia's largest supermarket Woolworths, is to wear a mask while shopping

The advice from health officials, disease experts and Australia's largest supermarket Woolworths, is to wear a mask while shopping

The store has now undertaken deep cleaning and anyone who was there during that time is advised to get tested.

Supermarket Giant Woolworths released a statement saying it 'strongly encourages' customers to 'wear face coverings'.

'Even though wearing a face covering is not mandatory in NSW, ACT or Queensland, as the largest

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