Shingles, also known as herpes zoster, is a viral disease characterized by a painful skin rash with blisters in a localized area.Typically the rash occurs in a single, wide stripe either on the left or right side of the body or face. Two to four days before the rash occurs there may be tingling or local pain in the area.The rash usually heals within two to four weeks; however, some people develop ongoing nerve pain which can last for months or years, a condition called postherpetic neuralgia. If the rash involves the eye, vision loss may occur.

It is estimated that about a third of people develop shingles at some point in their life.

There are a number of shingles vaccines which reduce the risk of developing shingles or developing severe shingles if the disease occurs. They include a live-virus vaccine and a non-live subunit vaccine.

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