Shingles are not contagious. However, since they are caused by the same virus that causes chicken pox, there is a very slight risk of someone getting shingles if that person has never had chicken pox or the vaccine.
Shingles are so painful that the person that has them is doubtful to let anyone at all within a mile of them...I know, I had them once. There is a vaccine for shingles...I have an Rx for it but I cannot find a drug store that has it or will even get it...strange, right??
Shingles are contagious to people who have never had chicken pox or are immunology-compromised. You should avoid contact with infants, pregnant woman, people taking chemotherapy for cancer or immunosupressants or AIDs patients.