Businesses and sporting events have been thrown into chaos following the introduction of new restrictions in response to a COVID-19 cluster in Adelaide.

The Adelaide cluster, centred predominantly in Adelaide’s northern suburbs, broke out on the weekend.

Initially news of the cluster sparked immediate border closures, which was followed by state-wide restrictions on businesses, gatherings and all forms of community sport.

Panic buying kicked in on Monday afternoon, with reports of the region’s supermarkets having their shelves stripped of toilet paper.

As of midnight Monday, gyms, recreation and trampoline centres, play cafes closed for two weeks.

Funerals were capped at 50, church ceremonies at 100, private gatherings at licensed venues at 50, pubs, clubs and restaurants at 100 people, while all community sport fixtures and training were cancelled.

Private residences can have no more than 10 people in attendance and personal care services such as hair, beauty and tattooists must wear masks.

Squashbrook Fitness and Leisure owner Simon Brook said he was trying to remain positive, despite the immediate shutdown of his business.

“I was shocked, I thought the government would learn from the Victorian approach and go for a city versus regional approach,” he said. “I was not expecting an immediate shutdown, perhaps an introduction of some further restrictions, or a warning pending the progress of the outbreak.

 “I think there are some inconsistencies in shutting down gyms and letting some other services operate.” Mr Brook said global statistics showed the risk of likely infections at gyms being 0.00008%.

“We run incredibly sanitised practices, so it’s quite frustrating for the business, for our staff and for perhaps most importantly for our members and guests who have lost access to their preferred means of maintaining and improving their physical health,” he said.

“A number of the staff are having to be temporarily stood down and we are continuing to work with personal training clients and group personal training clients outdoors and via zoom. “I’m devastated, frustrated, but getting on with it.

“We are encouraging everyone to focus on the things they can control even though some of their preferred training options have been temporarily taken away. Keep moving, choose healthy foods and look after your mental and physical wellbeing. We’ll be back before you know it!”

David Walker was devastated to learn he would have to close he and his partner’s businesses the Treehouse Adventure Centre and Kaboom Bowling.

“I just thought here we go again. It was heartbreaking to be honest, just devastating, we have got so many school groups and birthday parties booked in over the next few weeks, it’s all going to have to be cancelled,” he said.

“We are in for a huge loss.” Mr Walker said 20 staff had lost their jobs for the second time, after the business was forced to close for three months during the first round of lockdowns earlier this year.

“We opened in July after being shut for three months initially. We were flat out when first reopened, we have plateaued out a little bit, but we were still able to continue building the business,” he said.

“But we had not clawed back for the three months we did lose. “This closure is potentially two weeks, but it could be longer.”

The shutdowns happened just after SA Premier Steven Marshall announced the reopening of the Victorian border from December 1.

However, other states have now closed their borders to SA, including Queensland, WA, Tasmania and the NT.

Locally, a spokeswoman from the Limestone Coast Local Health Network said there had been a steady drop in the number of people presenting for testing in Mount Gambier over the past few weeks.

“With several cases now confirmed in metropolitan Adelaide over the weekend, unfortunately for the foreseeable future, the risk of COVID-19 is still our reality,” she said.

“The community so far have done a fantastic job maintaining social distance and getting tested when they have shown symptoms of COVID-19 and we encourage anyone, no matter how mild their symptoms, to continue to get tested and maintain good hand hygiene and physical distancing.”