The UK is one of the few countries in the world that does have proper randomized studies of Covid-19 prevalence, and has done since close to the start of the pa

The UK is one of the few countries in the world that does have proper randomized studies of Covid-19 prevalence, and has done since close to the start of the pandemic. Unfortunately the results lag behind the actual number of new infections by long enough that we wouldn't expect the drop in cases to cause a corresponding drop in the numbers coming of those studies just yet.