Shingles are caused by the varicella-zoster virus, which also causes chickenpox. After a person recovers from chickenpox, the virus can remain dormant in the nervous system for years. Later in life, the virus can reactivate and cause shingles. While it is possible to get shingles more than once, it is relatively uncommon.
According to the Centers for Disease Control and Prevention (CDC), about 1 in 3 people in the United States will develop shingles in their lifetime. However, the likelihood of getting shingles more than once is low. The risk of getting shingles a second time is estimated to be less than 5%.
If you have had shingles before, getting vaccinated can help reduce your risk of getting shingles again. The CDC recommends that adults aged 50 and older receive the shingles vaccine, regardless of whether they have had shingles before. The vaccine can also reduce the symptoms' severity if you get shingles again.