All in a name - blood types

Pureblood as opposed to Vaxblood. From the New York Post:

Unvaccinated people are declaring themselves ‘Purebloods’
Some anti-vaxxers have proclaimed themselves “Purebloods” in a campaign of biological supremacy against those who received the COVID-19 vaccine.

“From now on, I refuse to be referred to as ‘unvaccinated,’” said conservative influencer Lyndsey Marie in a post last week. “I want everyone to now call me Pureblood.”

Heh...