Shingles Symptoms Causes

Some who have had chickenpox can develop shingles later in life. The shingles or zoster, is a common disease that can strike 1 in 5 Americans. It is caused by reactivation of the same varicella virus that causes chickenpox. Shingles causes are associated with normal aging and anything that weakens the immune system such as certain drugs, cancer, infections or inborn disorders.