"Anyone 60 years or older should get the Shingles vaccine regardless of whether they recall having had chickenpox or not. Studies show that more than 99% of people over 40 have had chicken pox even if they don't remember getting the disease. The VIRUS STAYS INACTIVE IN YOUR BODY LONG AFTER YOU HAD CHICKENPOX AND CAN FLARE UP AS SHINGLES."
My sister-in-law got singles and said it was the most painful thing she has ever experienced.