Link to the preprint https://ndm.ox.ac.uk/files/coronavirus/covid-19-infection-survey/finalfinalcombinedve20210816.pdf… and better graph than in preprint to show the effect of time
https://ft.com/content/49641651-e10a-45f6-a7cc-8b8c7b7a9710… by @hannahkuchler@jburnmurdoch@FT