A question for epidemiologists. Someone said at the UK enquiry that COVID infection rates were still too high in summer 2020. But in July/August they were 1/2000 or lower. In summer 2021 they were consistently higher than 1/100 (ONS survey). What does that mean?

I am fundraising for Brain Tumour Research in memory of our son Tom who died in 2016 of a brain tumour aged 32. We hold a cricket match each year in his memory. This is the @JustGiving page and please donate if you so desire. #JustGiving justgiving.com/fundraising/c…