We'd like our [Natural] herd immunity back
The wisdom of the immune system is such that infection educates the body in ways that we do not completely understand (it's more than just antibody production!), and then passive exposure from infected individuals in the community, serves to continually reeducate and "boost" the potential response that keeps reinfection at bay.Vaccines don't do this, have never done this, and will never do this. DTaP is a perfect example.
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