It was Boris Johnson’s moonshot: mass testing, to avoid plunging the nation back into lockdown.
But as England heads into exactly that, a city-wide mass testing scheme is being pioneered in Liverpool.
The prime minister described it as a “powerful new weapon” in the fight against coronavirus, allowing all Liverpool residents and workers to get regular tests, starting on Friday.
If it’s a success, the government says the scheme could be rolled out to millions of people by Christmas.