Itchy and scratchy

Some families may harbor susceptibility to shingles

Having a close relative who has had a bout with shingles puts people at a heightened risk of suffering a similar outbreak, a new study finds.

A herpes virus called varicella zoster causes shingles and chickenpox. Since nearly everyone in the United States over age 25 has been exposed to the chickenpox virus, much of the population is at risk for shingles, which strikes in middle age and beyond.