I thought of this when I was listening to the audiobook Enlightenment Now and they mentioned the estimated billions of lives that were saved by recent(ish) developments, many of which involved vaccines and protocols like washing hands, sterilizing instruments, etc.

But thanks to idiots like Brainworms and our failure to properly impress on younger generations just how far we have come....we are likely to have a setback. I've already seen the stats on measles are staggering thanks to vaccine denialism.