Local Herd Immunity = Local Herd VaccineHerd immunity has been thrown out as a goal with one side saying we achieve it by the herd getting sick and immune; we're seeing that theory play out by those Americans who refuse to wear masks and take risks that will very likely cause them to get sick and yes, possibly immune.
The problem with this, of course, is COVID has an extremely high, almost indiscriminate death rate, especially among those over 65.