NHS test & trace: Does contact tracing stop coronavirus? - BBC News

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The NHS has introduced a test and trace schemes to help the UK lift lockdown measures and stop the spread of coronavirus

The UK's test and trace app is currently being trialled on the Isle of Wight but isn't ready yet to be rolled out elsewhere

BBC Health and Science correspondent, Laura Foster, explains what is meant by track and trace, how it works and how it can keep the R number low

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