I had it, my sister had it, no big deal, itched like crazy got a lil fever and poof it was gone
Until it comes back as shingles, you mean.
CP is down the list for important vaccinations, but it does kill a fair number of people (or did) and shingles are horrible.
It really depends on how badly one has it and IF one has it inside as well. The Chickenpox can be a light case to an almost deadly one.