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As few as 2 per cent of positive Covid lateral flow test results are accurate, adviser warns

Added 04-16-21 03:36:04am EST - “In emails, leaked to the Guardian, senior strategist Ben Dyson is said to have warned health department colleagues about the unreliability of lateral flow test results.” - Dailymail.co.uk

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Posted By TheNewsCommenter: From Dailymail.co.uk: “'As few as 2 per cent of positive Covid lateral flow results accurate'”. Below is an excerpt from the article.

As few as two per cent of positive Covid lateral flow test results taken in low prevalence areas are accurate, an adviser to Matt Hancock has warned.

In emails, leaked to the Guardian, senior strategist Ben Dyson is said to have warned health department colleagues about the unreliability of lateral flow test results.

Mr Dyson, who is an executive director of strategy at the health department and one of health secretary Matt Hancock's advisers, reportedly raised feared that the reliability of positive results could be as low as two per cent in certain areas.

The email was reportedly sent on April 9, four days after Boris Johnson announced a multi-billion pound plan for a mass-testing drive in the UK - which would see Britons test themselves twice a week with lateral flow tests.

According to the Guardian, Mr Dyson said in his email: 'As of today, someone who gets a positive LFD result in (say) London has at best a 25 per cent chance of it being a true positive, but if it is a self-reported test potentially as low as 10 per cent (on an optimistic assumption about specificity) or as low as 2 per cent (on a more pessimistic assumption).'

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