We're starting to get more useful data:
The first national snapshot of Covid-19 rates has revealed that 148,000 people in England were infected with the virus over the past two weeks.
The study, by the Office for National Statistics (ONS), tested 10,705 people in more than 5,000 households and estimated that 0.27% of the population in England were currently positive for Covid-19. That translates to roughly 10,000 people a day across the entire population, between 27 April and 10 May 2020.
The findings will inform the government’s next steps as it considers whether it is safe enough to further ease restrictions on socialising, businesses and schools in the coming weeks. Experts suggest the current rates of infection remain “some way off” what would be needed to lift the lockdown.
The results are likely to fuel concerns about the potential of opening primary schools on 1 June to fuel transmission in the community, as no evidence was found of differences in the proportions testing positive between the age categories 2 to 19, 20 to 49, 50 to 69 and 70 years and over.
https://www.theguardian.com/world/2020/may/14/148000-in-england-infected-with-coronavirus-in-last-two-weeks