4 ms·

I picked 80 because it was 4 times the 20% we already got. I wasn't really trying to be accurate, I think we'd need to look at an exponential as the R value dro

I picked 80 because it was 4 times the 20% we already got. I wasn't really trying to be accurate, I think we'd need to look at an exponential as the R value drops as the already infected rate goes up? Not sure... :) Isn't the R0 for "no restrictions" something like 15? So I'd guess we'd need 93%? But I also have seen figures from 50 to 95% quoted for herd immunity so who knows?

AnimalMuppet 6y ago
No, it's nowhere near 15. Measles is 12, and measles is far worse than Covid. I seem to recall seeing 1.3 for Covid, but that could have been after masking, quarantining, or both. Anyone with real numbers, feel free to supply them...