Others have suggested that dire developments in the last 24 hours - where major sporting events, attractions and popular events were closed to the public - has prompted the influx of shoppers.
Says one shopper on Twitter: ‘Today is the day people really started to panic. Woolies is absolutely packed. Shelves are empty in some aisles and it’s still early morning. People are pushing two completely full trolleys.’
Added another: ‘Going by the length of lines in Woolies this morning, the news from yesterday has marked a distinct change.’
New photos revealed just how packed some stores were, prompting disbelief from many shoppers.
‘If you are thinking of heading to Woolies in Hornsby this morning, abort! Abort! It’s freaking crazy. Only 8.30am and the queues for checkouts are insane,’ said one.
Added another: ‘I’m a Woolies in a 50-metre queue at the checkout. What is actually happening?’
Said one more: ‘They’re banning gatherings of over 500 people. I’ve got that many in my checkout queue at Woolies!’
Said one more: ‘I’m in Woolworths - one woman has four trolleys. Coronavirus panic is definitely here.’
Just days ago, Woolworths announced new limits on some items as well as changes to their refund policy - calling on people to only buy what they need.
Says a spokesperson: 'Woolworths has introduced quantity limits on tissues, paper towel, serviettes and wipes in addition to its existing limits on toilet paper, hand sanitiser and bulk packs of rice.
'The move will help Woolworths meet the needs of as many of its customers as possible in the face of unprecedented demand for certain products.
'Woolworths encourages customers to continue purchasing only what they need.'