Adding literal insult to injury I was then teased at school for my pock marks (not particularly bad ones) because of the perception that you only got them if you scratched your spots and so having them was a sign of moral failure.

Yes, my sons became infected too. I honestly believe that our blasé approach to chickenpox exposure is one reason why people don’t take measles etc seriously. They’ve never seen it (because science!) and because we see chickenpox as a rite of passage that’s the only comparison.