Dracula is as much about this problem, the problem of evidence and truth, as it is about vampires. In proposing that one truth may derail another, it invites an enduring question—do we believe vaccination to be more monstrous than disease?”
-- Author (chapter 3 paragraph 16)

Importance: The author uses the metaphor of Dracula to describe the inoculation debate. Is being inoculated more perilous than contracting the disease which it is designed to defeat? Despite the evidence there are those who believed in vampires. And despite evidence to the contrary, some believe that inoculation is dangerous. In essence, it is what chooses to believe more than what the proof demonstrates.

If we imagine the action of a vaccine not just in terms of how it affects a single body, but also in terms of how it affects the collective body of a community, it is fair to think of vaccination as a kind of banking of...
-- Author (chapter 4 paragraph 8)