Is it safe to get a vaccine for chicken pox?

Yes: The present Cpx vaccine was first developed in Japan & used there for years (~16) before it was licensed here for general use.Stringent safety requirements of the FDA were met early on but a favorable cost/benefit was not worked out until later.Before the vaccine, Cpx deaths ~50/yr and hospitalizations 10K/yr, now both are rare. A few patients get a mild rash with blisters after the shot.