COVID testing firms ‘lost’ nearly 3,000 people who tested positive upon arrival in England in the weeks leading up to the Omicron wave.

Government figures show the businesses, which charged passengers up to £95 per test, were unable to trace 8% (2,852) of all the positive cases they detected (36,509) between 30 September and 15 December.

The government said all firms providing the tests had passed minimum standards requirements.

But Labour’s shadow transport secretary Louise Haigh told openDemocracy this week: “The government has totally failed to get a grip of the ‘Wild West’ testing market despite repeated warnings from regulators.

“Cripplingly high prices, coupled with failure to meet even the most basic standards, has left passengers and the public exposed. The health secretary has been clear that testing will be a part of our response for some time to come so the government must finally take action to clean up this rotten market and cap prices immediately.”

The UK’s first case of the Omicron variant was first reported on 27 November 2021. COVID cases began to rise sharply a few weeks later, peaking at 246,269 cases reported in 24 hours on 29 December.

In the period covered by the testing statistics, 8,126 people in the UK died after testing positive.

In the week in late November that the first case of the Omicron variant was found in the UK, there were 358 untraced positive COVID-19 cases ‘arriving in England’. It has since been revealed that, during this time, at least 70 people with Omicron arrived from South Africa, where the variant was first detected, in England. It is not known whether all 70 cases were able to be traced.

This makes it entirely possible that one or more of the untraced positive cases had the variant.

Latest UK government guidance states that people who have COVID-19 can infect others from about two days before symptoms start and for up to 10 days after. A recent study from the University of Bern stresses the importance of tracking travellers who test positive, as a “ten-day quarantine will prevent 99.9% of local transmission if the individual was infected during a seven-day trip”.

The UK Health Security Agency said: “It is the responsibility of private travel test providers to inform the individual of their test result. Providers are required to report the results of tests taken to UKHSA. In some cases, it is not possible for NHS Test and Trace to contact individuals where there is incorrect or incomplete information.”

Some four million travellers used the Test and Trace system between late February and late November 2021. Of those, a total of 307,540 tests could not be traced back to the people who had taken them.

The COVID-19 Test and Trace system had a total budget of £37bn for the first two years of the scheme, up to April 2022.

More than 152,000 people in the UK are confirmed to have died within 28 days of a positive COVID test since the virus was first detected. The true figure is likely to be significantly higher due to the lack of testing in the early stages of the pandemic.

The revelation comes amid fierce criticism of the government for wasting the equivalent of £8.7bn on personal protective equipment (PPE) that was unsuitable or expired before it could be used.