@TimTravis2 @AlexBerenson 1/ Depends on the technology used. A dead-virus vaccine would seem the closest to natural immunity in terms of producing a heterogenous response, although even that would not be as good because you wouldn't get the localized protection against emerging mutants.
@TimTravis2 @AlexBerenson 2/ Not sure if any of the other candidates are dead virus vaccines. Supposedly, the narrowly-focused vaccines have the advantage of avoiding some of the worst triggers of the Vaccine Induced Enhancement which plagued the development of SARS vaccine, where prior vaccination turns 
@TimTravis2 @AlexBerenson 3/ what would normally be a mild respiratory infection into a life-threatening condition -- I understand in some of the experiments with the prototype SARS vaccine, all the ferrets that got the vaccine died on exposure to the coronavirus.
@TimTravis2 @AlexBerenson 4/ Anyway, the usual technological trade offs apply -- high risk of vaccine induced enhancement turning a mild disease into something deadly, or the more focused approach Moderna and Pfizer went with which more or less guarantees the emergence of new, resistant mutant strains.
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