Ideally you'd match it to some population of interest. For my own medical affairs, I don't care what grand-pappy's results are here, I want to know how cousin Tim fairs.
In addition to immunity based on T cells, the HIT depends on how individuals are networked. The original 60-70% estimates were based on 100% of people being vulnerable and also a random distribution of individuals interacting. In reality a small fraction of the population will have many interactions and once they become immune those transmission vectors away and the average R number drops. So based on the latest research plus observations of the worst hit places, 20-25% seems plausible.
What? I'd be shocked if Amazon even published a majority of books sold. There is no way they are monopoly or even close. I looked and couldn't find reliable stats on it. Does anyone else have any?
A majority by number of unique titles, or by sales volume? I would not be surprised to see Amazon publishing a very large fraction of 'long-tail' (almost self-published) books, and these likely make up a large fraction of all titles published.
https://www.ahri.org/omicron-incompletely-escapes-immunity-i... https://www.ahri.org/wp-content/uploads/2021/12/MEDRXIV-2021...