Almost 600m NHS home Covid tests unaccounted for, auditors reveal

Results from only 14% of the 691m tests handed out in England have been registered with test and trace

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Almost 600m lateral flow tests given to the public in England may not yet have been used, according to a report that says the hugely expensive test-and-trace system is still bedevilled by problems.

The National Audit Office said NHS Test and Trace (NSHT&T), which Boris Johnson promised would be world-beating and has a budget exceeding that of the Department for Transport, was struggling with some fundamental parts" of its role.