A technical glitch which meant almost 16,000 coronavirus cases went unreported has led to a delay in efforts to trace contacts of people who tested positive for the virus. Public Health England (PHE) said a technical issue resulted in 15,841 cases between September 25 and October 2 being left out of the reported daily coronavirus cases. Shadow Health Secretary Jonathan Ashworth said: “This is shambolic and people across the country will be understandably alarmed.
“Matt Hancock should come to the House of Commons on Monday to explain what on earth has happened, what impact it has had on our ability to contain this virus and what he plans to do to fix test and trace.”
But Tory MP Sir Desmond Swayne hit back at Labour in a fiery outburst on TalkRADIO.
He said: “I can’t get particularly excited about blaming ministers for what is a technical problem with a computer system.
“The Labour Party is demanding a statement and this is a shambles and all the rest of it.
“It’s a computer problem, get a life!”
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Senior officials said the outstanding cases were transferred to NHS Test and Trace “immediately” after the issue was resolved and thanked contact tracers for their “additional efforts” over the weekend to clear the backlog.
All cases were passed on to tracers by 1am on Saturday, meaning potential delays of more than a week in contacting thousands of people who were exposed to the virus and telling them to self-isolate.
PHE said every single person who was tested initially had received their test result as normal, with all those testing positive told to self-isolate.
The technical issue – caused by data files reporting positive test results exceeding the maximum file size – also means that daily totals reported on the Government’s coronavirus dashboard over the last week have been lower than the true number.
For example, 4,786 cases which were due to be reported on October 2 were not included in the daily total on the dashboard that day, when the figure was given as 6,968.
The Government’s dashboard said that, as of 9am on Sunday, there had been a further 22,961 lab-confirmed cases of coronavirus in the UK, taking the total number of cases in the UK to 502,978.
A note on the dashboard said: “The cases by publish date for 3 and 4 October include 15,841 additional cases with specimen dates between 25 September and 2 October – they are therefore artificially high for England and the UK.”
Michael Brodie, interim chief executive at PHE, said the “technical issue” was identified overnight on Friday October 2 in the data load process that transfers Covid-19 positive lab results into reporting dashboards.
The problem was caused by an Excel spreadsheet reaching its maximum file size, which stopped new names being added in an automated process, the PA news agency understands.
The files have now been split into smaller multiple files to prevent the issue happening again.
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Test and Trace and Public Health England joint medical adviser Susan Hopkins said: “All outstanding cases were immediately transferred to the contact tracing system by 1am on 3 October and a thorough public health risk assessment was undertaken to ensure outstanding cases were prioritised for contact tracing effectively.”
PHE said NHS Test and Trace have made sure that there are more than enough contact tracers working, and are working with local health protection teams to ensure they also have sufficient resources to be urgently able to contact all cases.
The number of call attempts is being increased from 10 to 15 over 96 hours.
On Monday morning, Work and Pensions Secretary Therese Coffey was asked if she knew how many potential close contacts have not been traced.
She told BBC Breakfast: “I’m afraid I just don’t have that information”, but said PHE had resolved the issue quickly.
