I napkin mathed a rate of one notable strain every 100 million infections. The rates higher than one every billion. And lower than one per 10 million. Also read

I napkin mathed a rate of one notable strain every 100 million infections. The rates higher than one every billion. And lower than one per 10 million. Also read a paper that mentioned the idea that the reason people get reinfected by cold viruses every couple of years is because that's how long it takes the virus to evolve to escape immunity. If you except roughly those numbers. If you got the infection rate down to 1 million / year. You'd see a new strain every 100 years. As it is we're seeing a new strain every couple of months.