CP was the first vax I really questioned for my kids- it seemed like a ridiculous thing to vaccinate for. I was told it was required for school, so although I disagreed I didn't know I could refuse... Neither DD 1 or 2 had gotten CP. DS is 1 and unvaccinated, no CP yet.
When I was a kid everybody got it. I had the worst case of anyone I knew. I was 13, was sick for two weeks, had pox EVERYWHERE, and even have a couple of scars still. My brothers were 10 & 7, and they got it after me but recovered before me. Still, it was no big deal and I wish I hadn't allowed my kids to be given that shot.
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