Martin Kulldorff

It is so perpetually exhausting to have to correct these medically and scientifically illiterate pub bores that somehow have national voices gifted to them not by talent or knowledge, but by virtue of nothing other than their volume.https://twitter.com/TelePolitics/status/1281999834845773826 …

Ignorance more frequently begets confidence than does knowledge

Herd immunity does not work like this - as we teach in GCSE biology. Individual immunity, typically via vaccination, prevent the spread of a contagious disease through a population when a majority of that population are immunised and this cannot infect others when exposed to it.

We don’t know if this will work for COVID-19, as a) there is no vaccine b) symptomless infection occurs c) we don’t know if having had the disease confers immunity... d) or if it does, with any permanence.

e) vaccine-less herd immunity (with the previous crippling caveats) will require more people to get the disease, and there more people to die. f) I believe exposure rates in the U.K. are currently around 5%, 17% in London. Herd immunity requires >80%.