The Liverpool coronavirus testing pilot failed to reach the city's poorest residents, raising questions about the scheme's effectiveness, leaked documents have revealed.

Half a million people were offered tests in November, including a new form of rapid lateral flow testing, carried out by NHS staff and the army.

It was the first city-wide scheme of its kind and a dry-run for Boris Johnson's "Operation Moonshot" - a billion-pound plan to provide regular, nationwide COVID-19 testing.

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