On Wednesday it was revealed that only 2,000 out of some half a million frontline NHS workers in England had been tested and Prime Minister Boris Johnson has said the UK needed to "massively ramp up" testing.

Labour's Shami Chakrabarti told the BBC's Today Programme that the government needed to show clarity in its plans for testing.

She said: "We’re asking the government to be transparent and to be clear - because that is so important in a public health emergency - about what its plans are to deliver the kind of scale of testing that we need.

"Without widespread testing in the population, we don’t understand – having listened to experts – the way out of the lockdown.”