re: #216 Last Mohican
NO, you can’t catch chickenpox if you already had it as a kid or were vaccinated, but as an adult you can get shingles - a particularly nasty illness - from being exposed to someone who has chickenpox. But you can’t give chickenpox to someone else.
And of course folks with compromised immune systems can get shingles from kids who have chickenpox - I know, I have a compromised immune system (from cancer) and I got shingles in 2007. From a kid with chickenpox in my doc’s waiting room, no doubt!