Spring data showed you could share everything including a bed with someone with symptoms throughout their illness and the maximum risk of them catching it was 50%. https://www.medrxiv.org/content/10.1101/2020.07.29.20164590v1

Now though 'catching it' is really the probability of two people both having a false positive result. The larger the group the higher the risk.

That is how we went from spring having outbreaks in care homes and hospitals (real COVID) to now having a few of those (because they're all being tested) but also being told there are outbreaks in schools, workplaces and supermarkets.

This is not real COVID. This is just the places where someone with a false positive meets the maximum number of people - such that the likelihood of a second false positive is high.

@threadreaderapp unroll