The government is “very concerned” about the numbers of people being pinged by the NHS app, the business secretary has told Sky News.
Speaking to Kay Burley, Kwasi Kwarteng said ministers were “monitoring” the situation and would be setting out a list of exempt critical workers “very soon”.
“The list of exemptions will be quite narrow because, obviously, you have to draw the line somewhere,” he said.
Downing Street said earlier this week that it would not be “producing a list covering individual sectors”, with employers instead having to apply to government departments to allow workers to effectively circumvent the COVID-19 rules around isolation.
His comments come as retailers warn they are under “increasing pressure” to keep shelves fully stocked amid staff shortages caused by the “pingdemic”.
Industry bosses have warned that supply chains are “starting to fail” due to the number of workers, including lorry drivers and meat-processing staff, getting pinged by the NHS COVID-19 app.
Some shoppers have posted pictures on social media of empty supermarket shelves in parts of the country.
Being pinged by the app means you should isolate for 10 days – but unlike being contacted by Test and Trace, it is guidance rather than legally mandated.
Latest figures show over 500,000 people were pinged by the app in the week up to 7 July, leading to concerns that millions could be forced out of work as coronavirus cases rise.
The British Retail Consortium (BRC) has now urged the government to change self-isolation guidance to help address the issue.
Andrew Opie, director of food & sustainability at the BRC, said in-store staff and suppliers should be allowed to work even if they get an alert to self-isolate for 10 days.
The prime minister’s spokesman said on Tuesday that the exemption would be determined on a case by case basis, with employers having to apply to the relevant government department to see if their workers can continue to come into work after they are identified as close contacts of someone who has tested positive for COVID.
The spokesman said it could include certain workers in the food industry, utilities, border staff and the NHS, but there is no blanket exemption for sectors.
There have been growing calls in recent weeks for changes to the rules around isolation, amid warnings that the number of people being told to quarantine is having a crippling effect on businesses.
From 16 August, under-18s and people who are fully vaccinated will no longer be told to isolate if they come into close contact with someone who has tested positive.
Instead, they will be encouraged to take a test. Anyone who tests positive will still be legally required to isolate, regardless of their vaccine status.