COVID-19: Supermarkets most common places visited before positive test - latest data
PHE collated the data using the NHS Test and Trace app for people who tested positive between 9 and 15 November.news.sky.com
Thanks for the link.
As people have already pointed out, the data were taken when hairdressers were closed, so it is unsurprising that supermarkets are higher on the list.
Even if you had data in this form for the time when hairdressers were open, it would not establish your proposition - if you remember, that was that visiting a hairdresser is a lower risk than shopping. These data log visits. They say nothing about transmission. Even the data did say something about transmission, absent the base rate (how many visits for people who didn't test positive) they are not capable of establishing relative risks.
But apart from those points...
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