Herd Immunity doesn't apply to Vaccines.
http://vaccinechoicecanada.com...
Disease-conferred immunity usually lasted a lifetime. As each new generation of children contracted the infection, the immunity of those previously infected was renewed due to their continual cyclical re-exposure to the disease; except for newly-infected children and the few individuals who’d never had the disease or been exposed to it, the ‘herd immunity’ of the entire population was maintained at all times.
Since Vaccines actually break "herd immunity", by not allowing natural cyclical re-exposure that is needed to maintain immunity. This is the lie of the Vaccine Big Pharma machine. This is why they are pushing vaccinations to protect against previously vaccinated people from getting the disease.
The problem is, as we found in the Disneyland case, was the vaccine didn't protect against out of zone (aisian in this case) version of Measles. Go figure, the herd immunity was gone.