Add Yahoo as a preferred source to see more of our stories on Google. Shingles can be hard to diagnose, especially if you're younger—in part because people don't expect younger adults to get it. That ...

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A: Shingles, the painful and blistery rash that arises when the chickenpox virus becomes reactivated, can be contagious, but only for people who are not already immune to chickenpox. Those who have ...