Major UK supermarkets have warned Brits not to panic buy amid a shortage of goods on shelves as the ‘pingdemic’ causes chaos across the UK.

Retailers are under “increasing pressure” to keep shelves fully stocked amid staff shortages, industry bosses have warned.

At the start of the pandemic last March shoppers began to stockpile which meant many struggled to get hold of essential items and now supermarket bosses have moved to avoid a similar situation.

It comes as Britain’s mounting lorry driver shortage also puts increased pressure on the country’s grocery supply chain.

Shoppers have already taken to social media to highlight empty shelves appearing in supermarkets across the country.

Andrew Opie, director of food & sustainability at the BRC, said staff in stores and suppliers should be allowed to work even if they get an alert to self-isolate.

“The ongoing ‘pingdemic’ is putting increasing pressure on retailers’ ability to maintain opening hours and keep shelves stocked,” he said.

“Government needs to act fast. Retail workers and suppliers, who have played a vital role throughout this pandemic, should be allowed to work provided they are double vaccinated or can show a negative Covid test, to ensure there is no disruption to the public’s ability to get food and other goods.

“With community cases soaring, the number of healthy retail staff having to self-isolate is rising fast, disrupting retail operations.”

Food industry bosses also warned that supply chains are “starting to fail” because of workers isolating over coronavirus contacts.

The UK’s biggest supermarkets described any shortages as “patchy” across stores but said there was no need for customers to change their shopping habits.

They said any gaps on the shelves were temporary as they awaited deliveries, and were occurring in pockets rather than across supply chains.

A Co-op spokesman said: “We are sorry that we are running low on some products. Like many retailers, we are impacted by some patchy disruption to our deliveries and store operations but we are working closely with our suppliers to get re-stocked quickly.”

A Sainsbury’s spokeswoman said: “We are working hard to ensure customers can find what they need.

“While we might not always have the exact product a customer is looking for in every store, large quantities of products are being delivered to stores daily and our colleagues are focused on getting them on to the shelves as quickly as they can.”

Budget supermarket chain Lidl joined Sainsbury’ in expressing concerns.

"Like all other retailers, the situation is becoming increasingly difficult as we have more and more colleagues having to self-isolate after being notified by the Track and Trace system," it said in a statement. 

"Whilst this is starting to have an impact on our operations, our teams are working hard to minimise any disruption to customers."

Iceland managing director Richard Walker has said staff absence rates are now double the usual number, with the figure rising 50% “week on week” due to people being told to self-isolate by the NHS app.

Mr Walker told the Radio 4’s Today programme: “We’ve now got over 1,000 staff off, who’ve been pinged. That’s double the normal rates, and it’s rising at 50% week on week.

“Our big concern is that we’ve kept all of our shops open throughout the pandemic, but now we have had to close one or two shops and reduce hours in others.

“But that could get a lot worse a lot quicker, unless the country’s system is sorted out.”

Mr Walker urged shoppers not to panic buy, saying: “There is certainly no problem with supply of stock.

“Panic-buying is only an option for those who can afford it and it often means that others go without.”

Elsewhere, sandwich chain Pret A Manger has temporarily closed 17 shops due to staff being forced to self-isolate.