3 ms·
Herd immunity is not in reality a single cutoff, it's a spectrum. So there is some point- looking like ~30% where R<1 and cases dip. But the > the %, the more i
by gloriosoc 6y ago
Herd immunity is not in reality a single cutoff, it's a spectrum. So there is some point- looking like ~30% where R<1 and cases dip. But the > the %, the more immunity.
- tonyedgecombe 6y agoTechnically it's the threshold where R drops below one. You might expect transmission to continue for some time. https://en.wikipedia.org/wiki/Herd_immunity#Overshoot https://en.wikipedia.org/wiki/Herd_immunity#Overshoot
- gloriosoc 6y agoSure. That is the technical definition. My point is that the rate at which cases will drop is proportional to the percent of the population that is immune. It's not a binary.