Probably smallpox not polio.sometimes the vaccines arent just about the recipient. sometimes its about the people around them too.
I remember asking my mother when I was a kid, why she had this weird circular scar on her arm.... turns out, it was from the Polio vaccine adminstered to her when she was younger. Polio, the illness that killed millions and was nearly iradicated because of a vaccine.
Unless there are hoards of doctors who say, "this vaccine is a bad idea, don't get it." im going to do my research
But i do think everyone should ask more questions about it, but get their responses from people who are trained and experienced in the sciences of it. Not because someone posted a meme or something on social media saying its bad and they are putting tracking devices in you. some of the same people claiming they want to get back to some form of normality are the same ones who refuse to get the vaccine and base it off theory or unfounded information from people who dont know what they are talking about.