It took two centuries for the vaccines to eradicate smallpox. And there were plenty of anti vaxxers along the way. Some thought the vaccine caused syphilis.
And while smallpox has now been eradicated, I believe it's inaccurate to say that "everyone" got the vaccine. It's unclear just how many received it but likely over 80%. Took a while to get there to say the least.
Covid is a very different disease.
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