My understanding is that they are now recommending people who had chicken pox in the past should, at the age of 60, get re-innoculated (or something equivalent) to protect against the development of shingles later.
"My predominant feeling is one of gratitude. I have loved and been loved;I have been given much and I have given something in return...Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and an adventure." O. Sacks