[jfman]

Is the infection survey not measuring who had it within the time period as opposed to since the start of the outbreak? As a crude analysis assuming you’d have it/test positive for a two week window it’s about a million people a month.

Also Statista are using confirmed positives (so less likely to count asymptomatics who wouldn’t be tested) - ONS are estimating prevalence in the population at a given time based upon their random sampling.