The high number of เกมสล็อต people being sent alerts by the NHS Test and Trace app has hit production at Nissan's Sunderland car plant after hundreds of staff were told to isolate.
It is understood that some 700 workers have been sent home from the plant, about 10% of the total workforce.
Case numbers in the local area have been rising sharply, meaning that it has been difficult to avoid disruption, according to sources within the firm.
The city, in north-east England, had 955 Covid cases per 100,000 people in the week to 10 July.
Anyone alerted by the app who has come into close contact with an infected person is told to self-isolate for 10 days.
Other sectors, including hospitality and airports, have also faces staffing issues due to large numbers being "pinged" by the app.