What began as a viral TikTok hashtag has infected every social media platform: Many of the proudly unvaccinated now identify themselves as #Pureblood.
Troubled observers have variously tied this term to the Harry Potter franchise (in which purebloods are Wizards untainted by muggle ancestry) and the eugenic Nazi fantasies of pure Aryan blood. But both comparisons miss the mark. The meaning of the hashtag is inseparable from vaccine refusers’ strong preference for “natural immunity,” a seemingly innocuous term that is actually a centerpiece of anti-vaccination ideology and ought to be abandoned immediately.
Although scientific authorities widely use “natural immunity” as a neutral description of immunity acquired through infection, it has different significance outside of medical journals. That’s because people often treat naturalness as synonymous with purity and goodness, even holiness.
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Contrary to the narrative being pushed, for COVID-19 “natural immunity” is not superior to vaccine-induced immunity, which is less variable and more reliable. Even if it were, yet again, I must emphasize that vaccine-induced immunity has a key advantage over post-infection immunity. It doesn’t require you to suffer through the illness and face the risks of severe disease and death from the disease to acquire it.
