Immensa errors may have led to 39,000 false negative Covid tests
were down to people unwittingly infecting others when they should have been isolating.
"Based on background infection rates in different population groups at the time, UKHSA estimated that this error could have led to around 39,000 results being incorrectly reported as negative when they should have been positive." "It is our view that there was no single action that NHS Test and Trace could have taken differently to prevent this error arising in the private laboratory.
Danmark Seneste Nyt, Danmark Overskrifter
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