Herd immunity cannot be measured by an arbitrary percentage. Maybe it is 70% or 80%, but only if that's a random sample of the population. Social networks deter

Herd immunity cannot be measured by an arbitrary percentage. Maybe it is 70% or 80%, but only if that's a random sample of the population. Social networks determine the relevance. If you have a single homogenous group of individuals that interact with each other that is unvaccinated then there's still plenty of threats. And that generally includes children as a big intermingling block.